And plastic boulders in the strong knees and calculations , would stand up .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (CC_0 And) (NP_1 (ATNP_2 (NP_4 (JJ_1 plastic) (NNS_1 boulders)) (PP_2 (IN_0 in) (NP_3 (ATNP_0 (ATNP_2 (ATNP_1 (DT_0 the) (JJ_1 strong)) (NNS_0 knees)) (CC_0 and)) (NNS_0 calculations)))) (COMMA_0 ,))) (VP_3 (MD_0 would) (VP_1 (VB_0 stand) (PRT_0 (RP_0 up))))) (DOT_0 .)))