significantly different ( and better ) 
(ROOT (ADJP (ADJP (RB significantly) (JJ different)) (-LRB- -LRB-) (CC and) (ADJP (JJR better)) (-RRB- -RRB-)))
(ROOT (ADJP (ADJP (RB ) (JJ )) (-LRB- ) (CC ) (ADJP (JJR )) (-RRB- )))