far more successful , if considerably less ambitious , 
(ROOT (ADJP (ADJP (RB far) (RBR more) (JJ successful)) (, ,) (SBAR (IN if) (FRAG (ADJP (RB considerably) (RBR less) (JJ ambitious)))) (, ,)))
(ROOT (ADJP (ADJP (RB ) (RBR ) (JJ )) (, ) (SBAR (IN ) (FRAG (ADJP (RB ) (RBR ) (JJ )))) (, )))