although this idea is `` new '' 
(ROOT (SBAR (IN although) (S (NP (DT this) (NN idea)) (VP (VBZ is) (`` ``) (ADJP (JJ new)) ('' '')))))
(ROOT (SBAR (IN ) (S (NP (DT ) (NN )) (VP (VBZ ) (`` ) (ADJP (JJ )) ('' )))))