(S (S (NP (BASENP (DT The) (NNS men)) (PRN (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBD were) (VP (VBN rescued) (PP (IN on) (BASENP (NNP May) (NN 9))))))) (COMMA ,))) (VP (VP (VBP have) (RB not)) (VP (VP (VBN spoken) (ADVP (RB publicly))) (PP (IN about) (NP (BASENP (DT the) (NN time)) (SBAR (S (BASENP (PRP they)) (VP (VBD spent) (S (VP (VBN trapped) (ADVP (RB underground)))))))))))) (PERIOD .))