(S (S (BASENP (NN Research) (NN group) (NNP IHS) (NNP iSuppli)) (VP (VBD said) (SBAR (S (BASENP (DT the) (NN explosion)) (VP (MD may) (VP (VP (VB cause) (NP (BASENP (NN loss)) (PP (IN of) (NP (BASENP (NN production)) (PP (IN of) (BASENP (NN 500,000) (NNPS iPads))))))) (PP (IN during) (NP (BASENP (DT this) (NN quarter)) (PP (IN of) (BASENP (DT the) (NN year))))))))))) (PERIOD .))