(S (S (S (S (S (S (BASENP (NNS Trains)) (VP (VP (VBP are) (RB not)) (VP (VBN allowed) (S (VP (TO to) (VP (VB go) (PRT (RP out)))))))) (SBAR (IN without) (S (BASENP (DT these) (NNS guides)) (VP (VBN placed) (PP (IN into) (BASENP (DT the) (NNS cars))))))) (PRN (LRB -LRB-) (S (BASENP (DT the) (NNS guides)) (VP (VP (VBP stop) (BASENP (DT the) (NNS loads))) (PP (IN from) (S (VP (VP (VBG swaying) (PP (PP (IN from) (BASENP (NN side))) (PP (TO to) (BASENP (NN side))))) (PP (IN in) (BASENP (DT the) (NNS cars)))))))) (RRB -RRB-))) (PRN (COMMA ,) (ADJP (JJ important) (PP (IN for) (NP (BASENP (NN safety)) (PP (IN with) (BASENP (ADJP (RB double) (JJ stacked)) (NNS containers)))))) (COMMA ,))) (CC but) (S (BASENP (PRP it)) (VP (VBZ seems) (SBAR (IN that) (S (PP (IN in) (BASENP (DT this) (NN case))) (S (NP (BASENP (DT the) (NN lack)) (PP (IN of) (BASENP (NNS employees)))) (VP (VBD forced) (S (BASENP (DT the) (NN train)) (VP (TO to) (VP (VB leave) (PP (IN without) (BASENP (PRP them))))))))))))) (PERIOD .))