Somewhat more involved 
( Somewhat ( more involved ) )
(ROOT (S (VP (VB Somewhat) (ADJP (RBR more) (VBN involved)))))
This one is not very involved.
( ( This one ) ( ( ( is not ) ( very involved ) ) . ) )
(ROOT (S (NP (DT This) (NN one)) (VP (VBZ is) (RB not) (ADJP (RB very) (VBN involved))) (. .)))