(S (S (S (NP (BASENP (DT Those)) (SBAR (WHNP (WP who)) (S (VP (VBD were) (VP (VBN rated) (PP (IN in) (NP (BASENP (DT the) (NN category)) (QT (DQL ``) (BASENP (DT any) (JJ social) (NN activity)) (DQR ''))))))))) (VP (ADVP (RB still)) (VP (VBD had) (NP (BASENP (DT an) (NN improvement)) (PP (IN over) (NP (BASENP (DT the) (NNS children)) (VP (VBN rated) (PP (IN as) (QT (DQL ``) (BASENP (DT no) (JJ social) (NN activity)) (DQR '')))))))))) (COLON :) (S (BASENP (PRP they)) (VP (VBD had) (NP (BASENP (QP (RB about) (NN 3/4)) (DT the) (NN chance)) (PP (IN of) (S (VP (VBG getting) (BASENP (DT the) (NN disease))))))))) (PERIOD .))