They did the plastic egg to stretch it .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_3 (VBD_0 did) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 plastic)) (NN_1 egg))) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 stretch) (NP_0 (PRP_1 it))))))) (DOT_0 .)))