That sounds like fun.
( That ( ( sounds ( like fun ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ sounds) (PP (IN like) (NP (NN fun)))) (. .)))
That sounds extremely boring.
( That ( ( sounds ( extremely boring ) ) . ) )
(ROOT (S (NP (DT That)) (VP (VBZ sounds) (ADJP (RB extremely) (JJ boring))) (. .)))