Take context from the input text and decide on the accurate relationship between 'Valtra' and 'AGCO' from the options provided.
Options: distributed by, product/material produced, developer, parent organization

AGCO products are sold through five core equipment brands, Challenger ® , Fendt ® , GSI ® , Massey Ferguson ® and Valtra ® and are distributed globally through a combination of approximately 3,100 independent dealers and distributors in more than 140 countries.
parent organization