They make a pretty pair working together.
( They ( ( make ( ( a ( pretty pair ) ) ( working together ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP make) (NP (NP (DT a) (JJ pretty) (NN pair)) (VP (VBG working) (ADVP (RB together))))) (. .)))
They don't go well together.
( They ( ( ( do n't ) ( go ( well together ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP do) (RB n't) (VP (VB go) (ADVP (RB well) (RB together)))) (. .)))