Giuseppina Grassi
She won a silver medal in the women's time trial at the 2007 Pan American Games in Rio de Janeiro , Brazil , and later represented her nation Mexico at the 2008 Summer Olympics . 
<triplet> 2007 Pan American Games <subj> 2007 <obj> point in time <subj> Rio de Janeiro, Brazil <obj> location <triplet> 2008 Summer Olympics <subj> 2008 <obj> point in time