Sentence:  The Fisher Body division , long controlled by the Fisher <WSD>brothers</WSD> under a voting trust even though General Motors owned a majority of its stock , followed an independent course for many years , but by 1947 and 1948 `` resistance had collapsed '' and its purchases from du Pont `` compared favorably '' with purchases by other General Motors divisions . 
Meaning of the word marked with <WSD> tags:  a male with the same parents as someone else