(S (S (S (S (VP (VP (VBG Freeing) (BASENP (VBN trapped) (NNS victims))) (PP (IN from) (ADVP (RB underneath) (BASENP (DT the) (NN wreckage)))))) (VP (VP (VBD took) (BASENP (NN rescue) (NNS workers))) (PP (IN under) (BASENP (NN twenty) (NNS minutes))))) (COMMA ,) (PP (VBG according) (PP (TO to) (BASENP (NNP Lindquist))))) (PERIOD .))