A sign is pictured outside an Eli Lilly and Company pharmaceutical manufacturing plant at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar

Workers pick purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. Picture taken with a drone. REUTERS/Jackson Njehia

Workers carry their baskets as they arrive to pick purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker airs purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, inside a machine at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker shows packages of purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Workers air purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Workers pick purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker picks purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, processed are seen displayed at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, are seen at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker picks purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Workers pick purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker manually airs purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Workers air purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker picks purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

Workers pick purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A view shows processed purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatanga industries limited in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

A worker walks within the purple tea leaves named TRFK 306/1, a clone by the Tea Research Foundation of Kenya, at the Gatura Greens purple tea plantation in Gatura settlement of Muranga county, Kenya January 30, 2021. Picture taken January 30, 2021. REUTERS/Thomas Mukoya

An Eli Lilly and Company pharmaceutical manufacturing plant is pictured at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar

An Eli Lilly and Company pharmaceutical manufacturing plant is pictured at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar

An Eli Lilly and Company pharmaceutical manufacturing plant is pictured at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar

An Eli Lilly and Company pharmaceutical manufacturing plant is pictured at 50 ImClone Drive in Branchburg, New Jersey, March 5, 2021. Picture taken March 5, 2021. REUTERS/Mike Segar

Cork oak destroyed by the historic Filomena snowstorm is seen in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a cork oak germination in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, stands next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Seedlings of cork oak are seen in the laboratory of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Inmaculada Hernandez, researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Cork oak destroyed by the historic Filomena snowstorm is seen in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of the agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a branch of a cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

A seedling of cork oak are seen in the laboratory of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, in Alcala de Henares , Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Mar Ruiz Galea researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a cork oak germination in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, stands next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

A ballot paper for presidential election with the same surname and initials of two candidates, Yuriy Tymoshenko, Ukrainian lawmaker and Yulia Tymoshenko, leader of opposition Batkivshchyna party, is seen at a printing plant in Kiev, Ukraine March 21, 2019. Picture taken March 21, 2019. REUTERS/Gleb Garanich

Yuriy Tymoshenko, Ukrainian lawmaker and presidential candidate whose last name and initials, Y.V. Tymoshenko, are the same as Yulia Tymoshenko's, the leader of opposition Batkivshchyna party and a presidential candidate, speaks to Reuters journalists in his flat in Kiev, Ukraine March 21, 2019. Picture taken March 21, 2019. REUTERS/Sergei Karazy

Yuriy Tymoshenko, Ukrainian lawmaker and presidential candidate whose last name and initials, Y.V. Tymoshenko, are the same as Yulia Tymoshenko's, the leader of opposition Batkivshchyna party and a presidential candidate, speaks to Reuters journalists in his flat in Kiev, Ukraine March 21, 2019. Picture taken March 21, 2019. REUTERS/Sergei Karazy

Yuriy Tymoshenko, Ukrainian lawmaker and presidential candidate whose last name and initials, Y.V. Tymoshenko, are the same as Yulia Tymoshenko's, the leader of opposition Batkivshchyna party and a presidential candidate, speaks to Reuters journalists in his flat in Kiev, Ukraine March 21, 2019. Picture taken March 21, 2019. REUTERS/Sergei Karazy

Yuriy Tymoshenko, Ukrainian lawmaker and presidential candidate whose last name and initials, Y.V. Tymoshenko, are the same as Yulia Tymoshenko's, the leader of opposition Batkivshchyna party and a presidential candidate, speaks to Reuters journalists in his flat in Kiev, Ukraine March 21, 2019. Picture taken March 21, 2019. REUTERS/Sergei Karazy

A screen displays the microscopic image of an attempt to inseminate a dog egg at a lab of the biotech company Sinogene that specialises in dog cloning in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Staff prepare a Beagle dog for surgery attempting to make it the surrogate mother of a clone of the dog Juice at a lab of the biotech company Sinogene in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Owner He Jun poses with his dogs, nine-year-old Juice and its two-month-old clone, at his pet resort in Beijing, China November 26, 2018. Picture taken November 26, 2018. REUTERS/Jason Lee

Nine-year-old Juice looks at its two-month-old clone at He Jun's pet resort in Beijing, China November 26, 2018. Picture taken November 26, 2018. REUTERS/Jason Lee

A technician works with genome samples at a lab of the biotech company Sinogene that specialises in dog cloning, in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Staff prepare a Beagle dog for surgery attempting to make it the surrogate mother of a clone of the dog Juice at a lab of the biotech company Sinogene in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Veterinary doctors conduct a surgery on a Beagle dog in an attempt to make it the surrogate mother of a clone of the dog Juice at a lab of the biotech company Sinogene in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

A lab technician demonstrates gene-editing software at a lab of the biotech company Sinogene that specialises in dog cloning in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Staff prepare a Beagle dog for surgery attempting to make it the surrogate mother of a clone of the dog Juice at a lab of the biotech company Sinogene in Beijing, China June 15, 2018. Picture taken June 15, 2018. REUTERS/Thomas Peter

Owner He Jun poses with his dogs, nine-year-old Juice and its two-month-old clone, at his pet resort in Beijing, China November 26, 2018. Picture taken November 26, 2018. REUTERS/Jason Lee

A staff member holds 24-day-old clone of Juice at the biotech company Sinogene in Beijing, China October 11, 2018. Picture taken October 11, 2018. REUTERS/Jason Lee

Sinogene CEO Mi Jidong (2nd R) and staff of the biotech company that specialises in animal cloning, hand over a one-month-old puppy, a clone of the nine-year-old Juice, to his owner He Jun (L) at the company's head office in Beijing, China, October 22, 2018. Picture taken October 22, 2018. REUTERS/Thomas Peter

Owner He Jun poses with a two-month-old clone of his dog Juice next to a movie poster showing source dog Juice, at his pet resort in Beijing, China November 21, 2018. Picture taken November 21, 2018. REUTERS/Jason Lee

A Beagle with the ID number NTR1917, who is the surrogate mother of the 24 day-old clone of Juice, shares an enclosure with its offspring at the biotech company Sinogene in Beijing, China October 11, 2018. Picture taken October 11, 2018. REUTERS/Jason Lee

Owner He Jun poses with a two-month-old clone of his dog Juice next to a movie poster showing source dog Juice, at his pet resort in Beijing, China November 21, 2018. Picture taken November 21, 2018. REUTERS/Jason Lee

Veterinary doctors conduct a pregnancy test on Beagle dog NTR1917, the surrogate mother of a clone of the dog Juice, at the biotech company Sinogene in Beijing, China September 10, 2018. Picture taken September 10, 2018. REUTERS/Jason Lee

Twenty-four-day old clone of Juice feeds off its surrogate mother, a Beagle dog with the ID number NTR1917, at the biotech company Sinogene in Beijing, China October 11, 2018. Picture taken October 11, 2018. REUTERS/Jason Lee

Airbus engineer Philipp Schulien holds a clone of an artificial intelligence bot named CIMON at the NASA News Annex in Florida, U.S., June 28, 2018. Picture taken on June 28, 2018. REUTERS/Joey Roulette

Bret Greenstein, IBM Global Vice President of Watson Internet of Things Offerings, holds a clone of an artificial intelligence bot named CIMON, at the Kennedy Space Center in Florida, U.S., June 28, 2018. Picture taken on June 28, 2018. REUTERS/Joey Roulette