( ( ( The ( vast majority ) ) ( of ( these infections ) ) ) ( ( ( are not ) ( sexually transmitted ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ vast) (NN majority)) (PP (IN of) (NP (DT these) (NNS infections)))) (VP (VBP are) (RB not) (VP (ADVP (RB sexually)) (VBN transmitted))) (. .)))
The vast majority of these infections are not sexually transmitted.
(ROOT (S (NP (NP (DT The) (JJ vast) (NN majority)) (PP (IN of) (NP (NN fish)))) (VP (VB reproduce) (ADVP (RB sexually))) (. .)))