( ( ( All reptiles ) ( -LRB- ( ( including birds ) -RRB- ) ) ) ( ( have ( eggs ( with ( ( amniotic membranes ) ( -LRB- ( ( which ( ( ( some lay ) and ) ( others ( ( retain ( inside ( their bodies ) ) ) ( until hatching ) ) ) ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT All) (NNS reptiles)) (PRN (-LRB- -LRB-) (PP (VBG including) (NP (NNS birds))) (-RRB- -RRB-))) (VP (VBP have) (NP (NP (NNS eggs)) (PP (IN with) (NP (NP (JJ amniotic) (NNS membranes)) (PRN (-LRB- -LRB-) (SBAR (WHNP (WDT which)) (S (S (NP (DT some)) (VP (VBD lay))) (CC and) (S (NP (NNS others)) (VP (VBP retain) (PP (IN inside) (NP (PRP$ their) (NNS bodies))) (PP (IN until) (NP (NN hatching))))))) (-RRB- -RRB-)))))) (. .)))
All reptiles (including birds) have eggs with amniotic membranes (which some lay and others retain inside their bodies until hatching).
(ROOT (S (NP (JJS Most) (NNS reptiles)) (VP (VBD lay) (NP (JJ amniotic) (NNS eggs))) (. .)))