Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

- The Wall Street Journal Asda shocked the grocery trade yesterday by reporting its worst sales performance since it was taken over by Walmart 16 years ago, with discounters continuing to poach its customers.

Answer: operator: grocery, Walmart; parent_organization: Asda, Walmart; owned_by: Asda, Walmart