(S (BASENP (NNP Bradford)) (VP (VBD said) (COLON :) (QT (DQL ``) (QTC (S (BASENP (DT A) (JJ full) (NN investigation)) (VP (VBD was) (VP (VBN needed) (S (VP (TO to) (VP (VB ascertain) (SBAR (IN whether) (S (NP (BASENP (DT any) (NNS students)) (PP (IN at) (BASENP (DT the) (NN school)))) (VP (VBD had) (VP (VBN been) (VP (VBN assaulted)))))))))))) (PERIOD .)) (DQR ''))))