( Cnidaria ( ( reproduce ( ( sexually or ) asexually ) ) . ) )
(ROOT (S (NP (NNP Cnidaria)) (VP (VB reproduce) (ADVP (ADVP (RB sexually)) (CC or) (ADVP (RB asexually)))) (. .)))
Cnidaria reproduce sexually or asexually.
(ROOT (S (NP (NNS Reptiles)) (ADVP (RB typically)) (VP (VB reproduce) (ADVP (RB sexually))) (. .)))