This one ended up being surprisingly easy!
( ( This one ) ( ( ( ended up ) ( being ( surprisingly easy ) ) ) ! ) )
(ROOT (S (NP (DT This) (NN one)) (VP (VBD ended) (PRT (RP up)) (S (VP (VBG being) (ADJP (RB surprisingly) (JJ easy))))) (. !)))
This is an easy one. 
( This ( ( is ( an ( easy one ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (DT an) (JJ easy) (NN one))) (. .)))