(S (S (BASENP (PRP It)) (VP (VBD was) (VP (VBN found) (SBAR (IN that) (S (S (S (NP (BASENP (DT those)) (SBAR (WHNP (WP who)) (S (VP (VBP experience) (BASENP (JJ sufficient) (JJ social) (NNS interactions)))))) (VP (VBD were) (ADJP (ADVP (BASENP (NN 50) (NN per) (NN cent)) (RBR more)) (ADJP (JJ likely) (S (VP (TO to) (VP (VB be) (ADJP (JJ alive))))))))) (SBAR (WHADVP (WRB when)) (S (VP (VBN re-examined) (ADVP (BASENP (NN eight) (NNS years)) (RBR later)))))) (PP (IN than) (NP (BASENP (DT those)) (SBAR (WHNP (WP who)) (S (VP (VBD were) (VP (ADVP (RBR more) (RB socially)) (VBN isolated)))))))))))) (PERIOD .))