( ( Method ( of ( financing ( -LRB- ( ( ( internal or ) external ) -RRB- ) ) ) ) ) . )
(ROOT (S (VP (VBN Method) (PP (IN of) (NP (NP (NN financing)) (PRN (-LRB- -LRB-) (NP (JJ internal) (CC or) (JJ external)) (-RRB- -RRB-))))) (. .)))
Method of financing (internal or external).
(ROOT (S (NP (NNS Amphibians)) (ADVP (RB sexually)) (VP (VB reproduce) (PP (IN through) (NP (JJ external) (CC or) (JJ internal) (NN fertilization)))) (. .)))