(S (S (CC But) (S (PP (RB instead) (PP (IN of) (S (VP (VBG solving) (NP (NP (BASENP (DT a) (NN mystery)) (PP (IN of) (BASENP (NN knowledge)))) (SBAR (S (BASENP (DT a) (NN reader)) (VP (VBZ has) (PP (IN in) (BASENP (PRPD their) (NN head))))))))))) (COMMA ,) (S (BASENP (DT these) (NNS experts)) (VP (VBP solve) (NP (BASENP (DT a) (NN problem)) (ADJP (JJ related) (PP (TO to) (NP (BASENP (NN something)) (SBAR (S (BASENP (PRP you)) (VP (VP (VBP have) (VP (VBN bought))) (CC and) (VP (VP (VBP do) (RB not)) (VP (VB understand)))))))))))))) (PERIOD .))