( ( The ( nine-banded armadillo ) ) ( ( is ( unique ( in ( that ( ( the females ) ( have ( ( quadruplets , ) ( ( ( four ( identical babies ) ) , ) ( ( each time ) ( they ( give birth ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ nine-banded) (NN armadillo)) (VP (VBZ is) (ADJP (JJ unique) (PP (IN in) (SBAR (IN that) (S (NP (DT the) (NNS females)) (VP (VBP have) (NP (NP (NNS quadruplets)) (, ,) (NP (NP (CD four) (JJ identical) (NNS babies)) (, ,) (NP (NP (DT each) (NN time)) (SBAR (S (NP (PRP they)) (VP (VBP give) (NP (NN birth)))))))))))))) (. .)))
The nine-banded armadillo is unique in that the females have quadruplets, four identical babies, each time they give birth.
(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)))) (. .)))