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.

In particular, Thomson Reuters share price purchases will be dictated for by private agreements will be at a discount to the prevailing market price on the Toronto Stock Exchange (TSX) at the time of purchase.

Answer: stock_exchange: Thomson Reuters, Toronto Stock Exchange; headquarters_location: Thomson Reuters, Toronto; location_of_formation: Thomson Reuters, Toronto