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.

Two years ago, SmartCentres supported Walmart Canada's test and rollout of grocery pickup in its stores at our properties and introduced co-branded Walmart Canada Penguin Pick-Up locations to help expand their reach into areas of Downtown, Toronto and Montreal, where access to their grocery offering is limited.

Answer: operator: grocery, Walmart; parent_organization: Walmart Canada, Walmart