(S (S (NP (NP (BASENP (NNP Oregon) (NNP State) (NNP University)) (PRN (LRB -LRB-) (BASENP (NNP OSU)) (RRB -RRB-))) (BASENP (NN animal) (NNS researchers))) (VP (PP (IN in) (NP (BASENP (NN conjunction)) (PP (IN with) (NP (NP (NP (NP (BASENP (DT the) (NNP U.S.) (NNP Department)) (PP (IN of) (BASENP (NNP Agriculture)))) (POS 's)) (PRN (LRB -LRB-) (BASENP (NNP USDA)) (RRB -RRB-))) (BASENP (ADJP (NNP Dubois) (COMMA ,) (JJ Idaho-based)) (NNP Sheep) (NNP Experiment) (NNP Station)))))) (VP (VBD released) (NP (BASENP (DT a) (NN report)) (PP (IN on) (NP (BASENP (DT an) (NNP OSU-USDA) (NN study)) (SBAR (SBAR (WHNP (WDT which)) (S (VP (VBD was) (VP (VBN initiated) (PP (IN in) (BASENP (NN 1995))))))) (SBAR (IN after) (S (BASENP (NNS breeders)) (VP (VP (VBD asked) (BASENP (DT the) (NN government))) (S (VP (TO to) (VP (VB determine) (SBAR (IN why) (S (NP (BASENP (DT some) (NNS rams)) (VP (VBN bought) (PP (IN as) (BASENP (NN breeding) (NNS studs))))) (VP (VBD showed) (NP (BASENP (DT no) (NN interest)) (PP (IN in) (BASENP (NNS females)))))))))))))))))))) (PERIOD .))