( ( ( Species capable ) ( of ( asexual reproduction ) ) ) ( ( ( are usually ) ( also ( capable ( of ( sexual reproduction ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Species) (NNP capable)) (PP (IN of) (NP (JJ asexual) (NN reproduction)))) (VP (VBP are) (ADVP (RB usually)) (ADJP (ADVP (RB also)) (JJ capable) (PP (IN of) (NP (JJ sexual) (NN reproduction))))) (. .)))
Species capable of asexual reproduction are usually also capable of sexual reproduction.
(ROOT (S (NP (JJ Sexual) (NN reproduction)) (ADVP (RB usually)) (VP (VBP occur) (PP (IN during) (NP (NP (NNS times)) (PP (IN of) (NP (JJ environmental) (NN stress)))))) (. .)))