IVF dichorionic, diamniotic twin gestation reduced from     triplets.
 Twin gestation conceived by IVF
(ROOT (NP (NP (NP (NN IVF) (NNS dichorionic)) (, ,) (NP (NP (JJ diamniotic) (NN twin) (NN gestation)) (VP (VBN reduced) (PP (IN from) (NP (NNS triplets)))))) (. .)))
(ROOT (NP (NP (JJ Twin) (NN gestation)) (VP (VBN conceived) (PP (IN by) (NP (NN IVF))))))
( ( ( ( IVF dichorionic ) , ) ( ( diamniotic ( twin gestation ) ) ( reduced ( from triplets ) ) ) ) . )
( ( Twin gestation ) ( conceived ( by IVF ) ) )