( ( Human beings ) ( ( ( have ( these ( four beginnings ) ) ) ( just ( as ( they ( have ( four limbs ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Human) (NNS beings)) (VP (VBP have) (NP (DT these) (CD four) (NNS beginnings)) (SBAR (RB just) (IN as) (S (NP (PRP they)) (VP (VBP have) (NP (CD four) (NNS limbs)))))) (. .)))
Human beings have these four beginnings just as they have four limbs.
(ROOT (S (NP (NNP Birds)) (VP (VBP have) (NP (CD four) (NNS limbs))) (. .)))