The knees smiled jerked silky clouds two friend who to was out know .
(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_1 The) (NNS_0 knees)) (VP_4 (ATVP_2 (VBD_1 smiled) (S_2 (VP_0 (ATVP_0 (VBN_0 jerked) (NP_2 (JJ_1 silky) (NNS_1 clouds))) (NP_2 (CD_0 two) (NN_2 friend))))) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_1 (VBD_0 was) (RB_1 out)) (VP_1 (VB_0 know)))))))) (DOT_0 .)))