(S (S (BASENP (DT The) (NNS miners)) (VP (VBP have) (VP (VBN been) (VP (VBN trapped) (PP (IN since) (NP (NP (NN 03:00) (PRN (LRB -LRB-) (NP (BASENP (NN 08:00)) (BASENP (NN UTC))) (RRB -RRB-))) (BASENP (JJ local) (NN time)))))))) (PERIOD .))