They is to be climbing the turquoise .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBZ_0 is) (S_1 (VP_0 (TO_0 to) (VP_1 (VB_0 be) (VP_2 (VBG_0 climbing) (NP_5 (DT_0 the) (NN_2 turquoise)))))))) (DOT_0 .)))