A perfume called Poison has appeared on the market.
( ( A perfume ) ( ( called ( Poison ( has ( appeared ( on ( the market ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN perfume)) (VP (VBD called) (SBAR (S (NP (NN Poison)) (VP (VBZ has) (VP (VBN appeared) (PP (IN on) (NP (DT the) (NN market)))))))) (. .)))
There has never been a perfume called Poison. 
( There ( ( ( has never ) ( been ( ( a perfume ) ( called Poison ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ has) (ADVP (RB never)) (VP (VBN been) (NP (NP (DT a) (NN perfume)) (VP (VBN called) (NP (NN Poison)))))) (. .)))