're far better served by the source material 
(ROOT (VP (VBP 're) (VP (ADVP (RB far) (RBR better)) (VBN served) (PP (IN by) (NP (DT the) (NN source) (NN material))))))
(ROOT (VP (VBP ) (VP (ADVP (RB ) (RBR )) (VBN ) (PP (IN ) (NP (DT ) (NN ) (NN ))))))