Question: What percentage of share of the chain supermarkets has in supermarket sector in the United Kingdom who's subsidiary is Argos?
Sentence (from "Sainsbury's"): Founded in 1869, by John James Sainsbury with a shop in Drury Lane, London, the company became the largest grocery retailer in 1922, was an early adopter of self-service retailing in the United Kingdom, and had its heyday during the 1980s.
Relevant evidence: No