That sounds like fun.
( That ( ( sounds ( like fun ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ sounds) (PP (IN like) (NP (NN fun)))) (. .)))
That sounds like it would make me happy.
( That ( ( sounds ( like ( it ( would ( make ( me happy ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ sounds) (SBAR (IN like) (S (NP (PRP it)) (VP (MD would) (VP (VB make) (S (NP (PRP me)) (ADJP (JJ happy)))))))) (. .)))