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.

Glencore chief executive Ivan Glasenberg in December described the industry's decision to ramp up production as a "big bet" that could "kill" smaller miners.

Answer: chief_executive_officer: Glencore, Ivan Glasenberg; owned_by: Glencore, Ivan Glasenberg; owner_of: Ivan Glasenberg, Glencore