about one thing is a small gem . 
(ROOT (S (NP (QP (IN about) (CD one)) (NN thing)) (VP (VBZ is) (NP (DT a) (JJ small) (NN gem))) (. .)))
(ROOT (S (NP (QP (IN ) (CD )) (NN )) (VP (VBZ ) (NP (DT ) (JJ ) (NN ))) (. )))