( There ( ( are ( ( ( some reptiles ) , ) ( such ( as ( ( the ( boa ( constrictor ( and ( komodo dragon ) ) ) ) ) ( that ( can ( ( ( reproduce ( both ( ( sexually and ) asexually ) ) ) , ) ( depending ( on ( whether ( ( a mate ) ( is available ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (DT some) (NNS reptiles)) (, ,) (PP (JJ such) (IN as) (NP (NP (DT the) (NN boa) (NN constrictor) (CC and) (NN komodo) (NN dragon)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB reproduce) (ADJP (DT both) (JJ sexually) (CC and) (JJ asexually)) (, ,) (PP (VBG depending) (PP (IN on) (SBAR (IN whether) (S (NP (DT a) (NN mate)) (VP (VBZ is) (ADJP (JJ available))))))))))))))) (. .)))
There are some reptiles, such as the boa constrictor and komodo dragon that can reproduce both sexually and asexually, depending on whether a mate is available.
(ROOT (S (NP (NNS Reptiles)) (ADVP (RB typically)) (VP (VB reproduce) (ADVP (RB sexually))) (. .)))