( ( The lady ) ( ( ( ( ( has ( ( given birth ) ( to ( ( a set ) ( of quadruplet ) ) ) ) ) , ) not ) quadruped ) . ) )
(ROOT (S (NP (DT The) (NN lady)) (VP (VP (VBZ has) (VP (VBN given) (NP (NN birth)) (PP (TO to) (NP (NP (DT a) (NN set)) (PP (IN of) (NP (NN quadruplet))))))) (, ,) (RB not) (VP (VBD quadruped))) (. .)))
The lady has given birth to a set of quadruplet, not quadruped.
(ROOT (S (NP (NP (CD Four) (NNS children)) (VP (VBN born) (PP (IN at) (NP (CD one) (NN birth))))) (VP (VBP are) (VP (VBN called) (NP (NNS quadruplets)))) (. .)))