请高手帮忙讲解一个句子

hz032478

Now Congress, in apparent agreement, has required by law that businesses awarded federal contracts of more than $500,000 do their best to find minority subcontractors and record their efforts to do so on forms filed with the government.

怎么分析呢

hz032478

很清晰了，谢谢

Claudinethj

businesses, (which were) awarded federal contracts of more than

$500,000, do their best to find minority subcontractors and record

their efforts to do so on forms (which were) filed with the

government

hz032478

我对整句话的意思感到很混乱，到底是谁奖励谁呢？还有后面record their efforts to do so on forms filed with the government.

不太明白

Claudinethj

Which part of the sentence do you have questions?