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 company has been outperforming rivals such as Yum Brands Inc's (YUM.N) Pizza Hut and McDonald's Corp (MCD.N) in the United States due to the digital investments, which make it easier for customers to order pizzas using methods such as smart watches and digital wallets.

Answer: subsidiary: Yum Brands, Pizza Hut; owner_of: Yum Brands, Pizza Hut