that doesn't seem fair does it
( ( that ( ( does n't ) ( seem fair ) ) ) ( does it ) )
(ROOT (SINV (S (NP (DT that)) (VP (VBZ does) (RB n't) (VP (VB seem) (ADJP (JJ fair))))) (VP (VBZ does)) (NP (PRP it))))
That might possibly be fair.
( That ( ( ( might possibly ) ( be fair ) ) . ) )
(ROOT (S (NP (DT That)) (VP (MD might) (ADVP (RB possibly)) (VP (VB be) (ADJP (JJ fair)))) (. .)))