(S (S (BASENP (PRP He)) (VP (ADVP (RB also)) (VP (VBD called) (PP (IN for) (NP (BASENP (DT an) (JJ international) (NN organization)) (SBAR (S (VP (TO to) (VP (VB investigate) (NP (BASENP (DT the) (NN situation)) (PP (IN in) (BASENP (NNP Tibet))))))))))))) (PERIOD .))