Through Responsive and Naturalistic Approaches.
( ( Through ( Responsive ( and ( Naturalistic Approaches ) ) ) ) . )
(ROOT (FRAG (PP (IN Through) (NP (NNP Responsive) (CC and) (NNP Naturalistic) (NNPS Approaches))) (. .)))
Natural approaches are key 
( ( Natural approaches ) ( are key ) )
(ROOT (S (NP (JJ Natural) (NNS approaches)) (VP (VBP are) (ADJP (JJ key)))))