`` The knees wore worried from a boy inside .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (TICK_0 ``) (NP_1 (DT_1 The) (NNS_0 knees))) (VP_3 (VBD_1 wore) (VP_2 (VBN_0 worried) (PP_2 (IN_0 from) (NP_3 (NP_4 (DT_0 a) (NN_2 boy)) (NN_2 inside)))))) (DOT_0 .)))