( ( ( Describe methods ) ( for ( overcoming ( distractions ( both ( ( internal and ) external ) ) ) ) ) ) . )
(ROOT (S (VP (VB Describe) (NP (NNS methods)) (PP (IN for) (S (VP (VBG overcoming) (NP (NP (NNS distractions)) (ADJP (DT both) (JJ internal) (CC and) (JJ external))))))) (. .)))
Describe methods for overcoming distractions both internal and external.
(ROOT (S (NP (NNS Amphibians)) (ADVP (RB sexually)) (VP (VB reproduce) (PP (IN through) (NP (JJ external) (CC or) (JJ internal) (NN fertilization)))) (. .)))