definitely a crowd-pleaser , but then , so was the roman colosseum . 
(ROOT (S (S (ADVP (RB definitely)) (NP (DT a) (NN crowd) (HYPH -) (NN pleaser))) (, ,) (CC but) (SQ (ADVP (RB then)) (, ,) (ADVP (RB so)) (VP (VBD was)) (NP (DT the) (JJ roman) (NN colosseum))) (. .)))
(ROOT (S (S (ADVP (RB )) (NP (DT ) (NN ) (HYPH ) (NN ))) (, ) (CC ) (SQ (ADVP (RB )) (, ) (ADVP (RB )) (VP (VBD )) (NP (DT ) (JJ ) (NN ))) (. )))