( ( Most reptiles ) ( ( reproduce sexually ) . ) )
(ROOT (S (NP (JJS Most) (NNS reptiles)) (VP (VB reproduce) (ADVP (RB sexually))) (. .)))
Most reptiles reproduce sexually.
(ROOT (S (NP (JJS Most) (NN fish)) (VP (VB reproduce) (PP (IN with) (NP (CD one) (DT another))) (ADVP (RB sexually))) (. .)))