( ( The ( fore limbs ) ) ( ( have ( ( ( five digits ) , ) ( ( the ( hind limbs ) ) four ) ) ) . ) )
(ROOT (S (NP (DT The) (NN fore) (NNS limbs)) (VP (VBP have) (NP (NP (CD five) (NNS digits)) (, ,) (NP (NP (DT the) (JJ hind) (NNS limbs)) (NP (CD four))))) (. .)))
The fore limbs have five digits, the hind limbs four.
(ROOT (S (NP (NNP Birds)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))