They could ahead stretch down boy Spanish .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_1 (MD_0 could) (RB_1 ahead)) (VP_1 (ATVP_0 (VB_0 stretch) (PRT_0 (RP_0 down))) (NP_3 (NN_3 boy) (JJ_0 Spanish))))) (DOT_0 .)))