(S (S (PP (IN In) (BASENP (DT both) (NNS cases))) (S (NP (NP (BASENP (DT a) (NN build-up)) (PP (IN of) (BASENP (NN ice)))) (PRN (LRB -LRB-) (PP (IN from) (NP (BASENP (NN water)) (RRC (ADVP (RB normally)) (ADJP (JJ present) (PP (IN in) (BASENP (DT all) (NN jet) (NN fuel))))))) (RRB -RRB-))) (VP (VBD developed) (PP (IN on) (NP (BASENP (DT a) (NN component)) (VP (VBN called) (S (BASENP (DT the) (NN fuel) (CC /) (NN oil) (NN heat) (NN exchanger))))))))) (PERIOD .))