( ( These mammals ) ( ( ( do not ) ( have ( four stomachs ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS mammals)) (VP (VBP do) (RB not) (VP (VB have) (NP (CD four) (NNS stomachs)))) (. .)))
These mammals do not have four stomachs.
(ROOT (S (NP (DT All) (NNS mammals)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))