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.

Chris MacDonald, a business ethics expert at Ryerson University in Toronto who oversaw a case study about Google’s operations in China while at Duke University, says Chinese regulators will see Play as less threatening than Search and Gmail, reducing the frequency of government-led probes.

Answer: headquarters_location: Ryerson University, Toronto