that is richer than anticipated 
(ROOT (S (NP (DT that)) (VP (VBZ is) (ADJP (ADJP (JJR richer)) (SBAR (IN than) (S (VP (VBN anticipated))))))))
(ROOT (S (NP (DT )) (VP (VBZ ) (ADJP (ADJP (JJR )) (SBAR (IN ) (S (VP (VBN ))))))))