( ( Like ( many birds ) ) ( , ( woodpeckers ( ( have ( ( four toes ) ( on ( each foot ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Like) (NP (JJ many) (NNS birds))) (, ,) (NP (NNS woodpeckers)) (VP (VBP have) (NP (NP (CD four) (NNS toes)) (PP (IN on) (NP (DT each) (NN foot))))) (. .)))
Like many birds, woodpeckers have four toes on each foot.
(ROOT (S (NP (NNP Birds)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))