(S (S (BASENP (DT The) (NN mascot)) (VP (VP (VBD was) (VP (VP (VBN introduced) (PP (IN in) (BASENP (NN 1907)))) (COMMA ,) (VP (VP (VP (VBN brought) (PRT (RP in))) (PP (IN as) (BASENP (DT a) (NN costume) (NN character)))) (PP (IN in) (BASENP (NN 1921)))))) (CONJP (COMMA ,) (CC and)) (VP (VP (VBZ is) (ADVP (RB even))) (NP (BASENP (DT the) (NN subject)) (PP (IN of) (NP (BASENP (DT the) (NN book)) (NP (BASENP (DT The) (NNP Nittany) (NNP Lion)) (COLON :) (BASENP (DT An) (JJ Illustrated) (NN Tale))))))))) (PERIOD .))