How can the definers be sure we will know without being told that a man-about-town is never a woman?
( How ( ( ( can ( the definers ) ) ( be ( sure ( we ( will ( know ( without ( being ( told ( that ( ( a man-about-town ) ( ( is never ) ( a woman ) ) ) ) ) ) ) ) ) ) ) ) ) ? ) )
(ROOT (SBARQ (WHADVP (WRB How)) (SQ (MD can) (NP (DT the) (NNS definers)) (VP (VB be) (ADJP (JJ sure) (SBAR (S (NP (PRP we)) (VP (MD will) (VP (VB know) (PP (IN without) (S (VP (VBG being) (VP (VBN told) (SBAR (IN that) (S (NP (DT a) (NN man-about-town)) (VP (VBZ is) (ADVP (RB never)) (NP (DT a) (NN woman)))))))))))))))) (. ?)))
Men can always be recognized and could never be mistaken for a woman.
( Men ( ( ( ( ( can always ) ( be recognized ) ) and ) ( ( could never ) ( be ( mistaken ( for ( a woman ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Men)) (VP (VP (MD can) (ADVP (RB always)) (VP (VB be) (VP (VBN recognized)))) (CC and) (VP (MD could) (ADVP (RB never)) (VP (VB be) (VP (VBN mistaken) (PP (IN for) (NP (DT a) (NN woman))))))) (. .)))