Case Study Evaluations.
( Case ( Study ( Evaluations . ) ) )
(ROOT (NP (NNP Case) (NNP Study) (NNP Evaluations) (. .)))
Evaluations of Case Studies.
( ( Evaluations ( of ( Case Studies ) ) ) . )
(ROOT (NP (NP (NNS Evaluations)) (PP (IN of) (NP (NNP Case) (NNPS Studies))) (. .)))