(S (S (BASENP (DT The) (NN oil) (NN field)) (VP (VP (VP (VBD began) (BASENP (NN shutdown) (NNS procedures))) (PP (IN on) (BASENP (NNP Sunday)))) (PP (JJ due) (PP (TO to) (NP (BASENP (JJ severe) (NN corrosion)) (CC and) (NP (BASENP (DT a) (JJ minor) (NN leakage)) (PP (IN from) (BASENP (DT an) (NN oil) (NN transit) (NN line))))))))) (PERIOD .))