( ( A ( ( The birth ) ( of quadruplets ) ) ) ( ( has ( come ( as ( a ( great surprise ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NP (NP (DT The) (NN birth)) (PP (IN of) (NP (NNS quadruplets))))) (VP (VBZ has) (VP (VBN come) (PP (IN as) (NP (DT a) (JJ great) (NN surprise))))) (. .)))
A The birth of quadruplets has come as a great surprise.
(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)))) (. .)))