about a school , streaming boulders , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (IN_0 about) (NP_6 (ATNP_1 (ATNP_0 (NP_5 (DT_0 a) (NN_2 school)) (COMMA_0 ,)) (NN_0 streaming)) (NNS_1 boulders))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))