Fonterra in August slashed its farmgate milk price for the coming season by $NZ1.40 to $NZ3.85 per kilogram of milk solids but since then prices have risen at three successive GlobalDairyTrade auctions to arrest a six-month slide.
In the context of the input sentence, determine the relationship between 'Fonterra' and 'milk'.
Options: owned by, industry, member of, product/material produced