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.

SEATTLE, Sept 22 Boeing Co Chief Executive Dennis Muilenburg said he sees scope for additional 737 work going to China as the company continues to increase production rates of the single-aisle jetliner.

Answer: chief_executive_officer: Boeing, Dennis Muilenburg; employer: Dennis Muilenburg, Boeing