this grassy friend could know Trailing around .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (DT_0 this) (JJ_1 grassy)) (NN_0 friend)) (VP_4 (MD_0 could) (VP_1 (VB_0 know) (VP_2 (VBG_0 Trailing) (PRT_0 (RP_0 around)))))) (DOT_0 .)))