Refer to the input text as context and select the correct relationship between 'Fonterra' and 'milk' from the available options.
Options: director/manager, product/material produced, employer, developer

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.
product/material produced