( They ( ( have ( amniotic eggs ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP have) (NP (JJ amniotic) (NNS eggs))) (. .)))
They have amniotic eggs.
(ROOT (S (NP (NNS Mammals)) (VP (VP (VBP have) (NP (CD four) (NNS limbs))) (CC and) (VP (VBP produce) (NP (JJ amniotic) (NNS eggs)))) (. .)))