(S (S (BASENP (PRP He)) (VP (VBD requested) (SBAR (IN that) (S (BASENP (DT the) (NNS presidents)) (VP (VP (VP (VP (VBP shake) (BASENP (NNS hands))) (PP (IN with) (BASENP (DT each) (NN other)))) (PRN (COMMA ,) (SBAR (WHNP (WDT which)) (S (BASENP (PRP they)) (VP (MD did)))) (COMMA ,))) (PP (IN in) (NP (BASENP (DT a) (JJ televised) (NN gesture)) (VP (VP (VBN viewed) (ADVP (RB live))) (PP (IN across) (BASENP (NNP Latin) (NNP America))))))))))) (PERIOD .))