(S (S (BASENP (NNS Tanks)) (VP (VBD were) (VP (VBN reported) (S (VP (TO to) (VP (VB have) (VP (VBN landed) (NP (QP (ADVP (ADVP (RB as) (ADVP (RB far) (RB away))) (IN as)) (NN four)) (NNS blocks))))))))) (PERIOD .))