Do feel like it's changed a lot?
( ( ( Do feel ) ( like ( it ( 's ( changed ( a lot ) ) ) ) ) ) ? )
(ROOT (SQ (VBP Do) (NP (NN feel)) (VP (VB like) (SBAR (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN changed) (NP (DT a) (NN lot))))))) (. ?)))
Do you believe it has differed a great deal? 
( ( ( Do you ) ( believe ( it ( has ( differed ( a ( great deal ) ) ) ) ) ) ) ? )
(ROOT (SQ (VBP Do) (NP (PRP you)) (VP (VB believe) (SBAR (S (NP (PRP it)) (VP (VBZ has) (VP (VBN differed) (NP (DT a) (JJ great) (NN deal))))))) (. ?)))