(S (S (NP (BASENP (NN Insulin) (NN resistance)) (PRN (LRB -LRB-) (BASENP (NN IR)) (RRB -RRB-))) (VP (VBZ is) (NP (BASENP (DT a) (NN condition)) (SBAR (WHADVP (WRB where)) (S (NP (BASENP (DT the) (NN body) (POS 's)) (NNS cells)) (VP (VBP are) (ADJP (JJ unable) (S (VP (TO to) (VP (VP (VB respond) (ADVP (RB properly))) (PP (TO to) (BASENP (JJ insulin-based) (NNS treatments))))))))))))) (PERIOD .))