(S (S (PP (IN In) (BASENP (NN 2007))) (COMMA ,) (S (BASENP (NNP SLM)) (VP (VBD filed) (NP (BASENP (DT a) (BASENP (QP (DOLLAR $) (NN 5) (NN billion))) (NN lawsuit)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (BASENP (PRP it)) (VP (VBD claimed) (NP (BASENP (NN co-ownership)) (PP (IN of) (NP (BASENP (DT all)) (PP (IN of) (NP (NP (BASENP (NNP Stan) (NNP Lee) (POS 's)) (NNS creations)) (PP (IN for) (BASENP (NNP Marvel))))))))))))))) (PERIOD .))