These adaptations are not uniformly valued.
( ( These adaptations ) ( ( ( are ( not uniformly ) ) valued ) . ) )
(ROOT (S (NP (DT These) (NNS adaptations)) (VP (VBP are) (ADVP (RB not) (RB uniformly)) (VP (VBN valued))) (. .)))
Adaptions aren't always valued 
( Adaptions ( ( are n't ) ( always valued ) ) )
(ROOT (S (NP (NNS Adaptions)) (VP (VBP are) (RB n't) (VP (ADVP (RB always)) (VBN valued)))))