(S (S (BASENP (PRP It)) (VP (VBD transpired) (SBAR (IN that) (S (BASENP (DT the) (NN fire)) (VP (VBD was) (VP (VBN caused) (PP (IN by) (NP (BASENP (DT an) (JJ electrical) (NN fault)) (PP (BASENP (NN 1,000) (NNS ft)) (PP (IN below) (BASENP (DT the) (NN surface)))))))))))) (PERIOD .))