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.

Seven will telecast an average of 3.5 matches per round on free-to-air TV in a deal that will begin in 2017, while Foxtel will maintain its rights for all nine matches and Telstra the digital rights.

Answer: owner_of: Telstra, Foxtel; owned_by: Foxtel, Telstra