(S (S (NP (BASENP (DT The) (NN experiment)) (PRN (COMMA ,) (NP (NP (BASENP (DT the) (JJS largest)) (PP (IN of) (BASENP (PRPD its) (NN kind)))) (PP (IN in) (BASENP (DT the) (NN world)))) (COMMA ,))) (VP (VBD was) (VP (VP (ADVP (RB first)) (VP (VP (VP (VBN switched) (PRT (RP on))) (PP (IN with) (BASENP (JJ great) (NN fanfare)))) (PP (IN in) (BASENP (NNP September) (NN 2008))))) (CONJP (COMMA ,) (CC but)) (VP (VP (VBN suffered) (BASENP (DT an) (JJ electrical) (NN fault))) (ADVP (BASENP (RB just) (NN nine) (NNS days)) (RBR later)))))) (PERIOD .))