Complex sentence: Rafael Motta Bacêllo Mósca (born May 13,1982 in Rio de Janeiro) is a freestyle swimmer from Brazil, who won the silver medal with the men's relay team in the 4x200m freestyle at the Pan American Games in Santo Domingo, Dominican Republic.
Split into simpler sentences: Rafael Motta Bacêllo Mósca (born May 13,1982 in Rio de Janeiro) is a freestyle swimmer from Brazil. He won the silver medal with the men's relay team in the 4x200m freestyle at the Pan American Games in Santo Domingo, Dominican Republic.