(S (S (BASENP (DT The) (NN boy)) (VP (VBZ claims) (SBAR (IN that) (S (S (BASENP (PRP he)) (VP (VP (VBD fainted) (ADVP (RB soon) (RB after))) (CC and) (VP (VBD came) (ADVP (RB around))))) (SBAR (WHADVP (RB only) (WRB when)) (S (BASENP (DT the) (NN plane)) (VP (VBD had) (VP (VP (VBN landed) (PP (IN in) (BASENP (NNP Moscow)))) (PP (IN after) (S (VP (VP (VBG traveling) (NP (BASENP (NNS hundreds)) (PP (IN of) (BASENP (NNS kilometres))))) (PP (IN from) (BASENP (NNP Perm)))))))))))))) (PERIOD .))