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.

SANTIAGO, Sept 28 The world's No.1 copper producer Codelco said on Monday that it was reducing the number of executives on its payroll by 15.6 percent, as the Chilean state-owned miner cuts costs in the face of tumbling prices for the industrial metal.

Answer: product_or_material_produced: Codelco, copper