If attention left to ask up hat looking .
(ROOT_0 (S_0 (ATS_3 (NP_1 (IN_2 If) (NN_3 attention)) (VP_4 (VBD_2 left) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_0 (VB_0 ask) (PRT_0 (RP_0 up))) (NP_3 (NP_5 (NN_3 hat)) (SBAR_0 (S_2 (VP_0 (VBG_0 looking)))))))))) (DOT_0 .)))