(S (S (BASENP (NN Program) (NNS coordinators)) (VP (VBP estimate) (SBAR (IN that) (S (BASENP (NNS tutors)) (VP (VP (VBD volunteered) (BASENP (QP (DT some) (NN 5000)) (NNS hours))) (BASENP (JJ last) (NN year))))))) (PERIOD .))