We hate them because they are smarter, or more studious, or more focused than we are.
( We ( ( ( hate them ) ( because ( they ( ( ( are ( ( ( ( smarter , ) or ) ( more studious ) ) , ) ) ( ( or more ) focused ) ) ( than ( we are ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP hate) (NP (PRP them)) (SBAR (IN because) (S (NP (PRP they)) (VP (VBP are) (ADVP (ADVP (RBR smarter)) (, ,) (CC or) (ADVP (RBR more) (RB studious)) (, ,)) (ADJP (NP (QP (CC or) (JJR more))) (VBN focused)) (SBAR (IN than) (S (NP (PRP we)) (VP (VBP are)))))))) (. .)))
They are better than we are. 
( They ( ( are ( better ( than ( we are ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP are) (ADJP (ADJP (JJR better)) (SBAR (IN than) (S (NP (PRP we)) (VP (VBP are)))))) (. .)))