(S (S (S (BASENP (DT The) (NN incident)) (VP (VBD began))) (SBAR (WHADVP (WRB when)) (S (S (BASENP (NN two) (NNS vehicles)) (VP (VBD blocked) (NP (BASENP (DT the) (NN transmission) (NN truck)) (COMMA ,) (VP (VBN labeled) (QT (DQL `) (BASENP (NN TV)) (DQR ')))))) (CONJP (COMMA ,) (CC and)) (S (BASENP (PRPD their) (NN bodyguard)) (VP (VBD was) (VP (VP (VP (VBN forced) (PP (TO to) (BASENP (DT the) (NN ground)))) (PP (IN at) (BASENP (NNP gunpoint)))) (PP (IN by) (BASENP (DT a) (JJ masked) (NN man))))))))) (PERIOD .))