Sentence 1: Brazil had already signed a separate Loizaga - Cotegipe contract with Paraguay in 1872 , and now did much to support Paraguay in its negotiations with Argentina .
Sentence 2: Brazil had signed a separate Loizaga - Cotegipe contract with Paraguay in 1872 and already did much to help Paraguay in its negotiations with Argentina .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?