(S (S (S (PP (IN During) (BASENP (NNP World) (NNP War) (NNP II))) (COMMA ,) (S (BASENP (PRP he)) (VP (VP (VBD served) (PP (IN as) (NP (BASENP (DT a) (JJ prominent) (NN member)) (PP (IN of) (NP (BASENP (DT a) (JJ special) (NN summer) (NN session)) (PP (IN at) (NP (BASENP (DT the) (NNP University)) (PP (IN of) (BASENP (NNP California) (COMMA ,) (NNP Berkeley)))))))))) (PP (IN at) (NP (BASENP (DT the) (NN invitation)) (PP (IN of) (BASENP (NNP Robert) (NNP Oppenheimer)))))))) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VP (VBD outlined) (NP (BASENP (DT the) (JJ first) (NNS designs)) (PP (IN for) (BASENP (DT the) (JJ atomic) (NN bomb))))) (CC and) (VP (VBD served) (PP (IN as) (NP (BASENP (DT the) (NN beginning)) (PP (IN of) (BASENP (DT the) (NNP Manhattan) (NNP Project)))))))))) (PERIOD .))