valley friends knew schoolhouse out the minutes but discovered unmistakably seven-hour .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NN_1 valley) (NNS_0 friends)) (VP_4 (ATVP_1 (VP_5 (VBD_0 knew) (ADJP_0 (JJ_1 schoolhouse) (PP_1 (IN_1 out) (NP_2 (DT_0 the) (NNS_1 minutes))))) (CC_0 but)) (VP_5 (VBD_0 discovered) (ADJP_0 (RB_0 unmistakably) (JJ_0 seven-hour))))) (DOT_0 .)))