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.

Aug 10 (Reuters) - Dean Foods Co's steeper-than-expected decline in quarterly sales and surprise departure of its chairman ahead of the earnings report sent shares of the largest U.S. milk processor down as much as 18 percent on Monday.

Answer: product_or_material_produced: Dean Foods, milk