(S (S (NP (BASENP (NNS Studies)) (VP (VBN conducted) (PP (IN by) (NP (BASENP (DT a) (NN team)) (PP (IN of) (NP (BASENP (NNS physicists)) (PP (IN at) (NP (NP (NP (BASENP (DT the) (NNP University)) (PP (IN of) (BASENP (NNP Texas)))) (PP (IN at) (BASENP (NNP Arlington)))) (PRN (LRB -LRB-) (BASENP (NNP UTA)) (RRB -RRB-)))))))))) (VP (VBP conclude) (SBAR (IN that) (S (S (S (BASENP (JJ new) (JJ synthetic) (NNP NBA) (NNS basketballs)) (VP (VBP are) (ADJP (ADJP (RBR less) (JJ lively)) (COMMA ,) (ADJP (RBR more) (JJ slippery))))) (SBAR (WHADVP (WRB when)) (FRAG (ADJP (JJ damp))))) (CONJP (COMMA ,) (CC and)) (S (VP (VBP bounce) (ADVP (ADVP (RBR more) (RB erratically)) (PP (IN than) (BASENP (DT the) (JJ traditional) (NN leather) (NNS balls)))))))))) (PERIOD .))