Britain's Queen Elizabeth II holds a bunch of flowers during a visit to a replica of an original Sainsbury's store at Covent Garden in London on Wednesday, May 22, 2019 on the occasion of the brand's 150th anniversary. [Photo: AFP]"

Britain's Queen Elizabeth II waves as she leaves a replica of an original Sainsbury's store at Covent Garden in London on Wednesday, May 22, 2019 on the occasion of the brand's 150th anniversary. [Photo: AFP]"

Britain's Queen Elizabeth II looks at a shopping bag and a self-checkout machine during a visit to a Sainsbury's store at Covent Garden in London on Wednesday, May 22, 2019 on the occasion of the brand's 150th anniversary. [Photo: AFP]"

Britain's Queen Elizabeth II leaves a Sainsbury's store at Covent Garden in London on Wednesday, May 22, 2019 on the occasion of the brand's 150th anniversary. [Photo: AFP]"