What is the relationship between Fonterra and milk in the context of the input sentence. Choose an answer from: 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.

Fonterra has slashed its 2014-15 forecast for its New Zealand farmers by NZ10¢ to $NZ4.50 ($4.23) per kilogram of milk solids, the lowest level in eight years.

Answer: product_or_material_produced