( ( Most reptiles ) ( ( lay ( ( amniotic eggs ) ( covered ( with ( leathery ( or ( calcareous shells ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJS Most) (NNS reptiles)) (VP (VBD lay) (NP (NP (JJ amniotic) (NNS eggs)) (VP (VBN covered) (PP (IN with) (NP (NN leathery) (CC or) (NN calcareous) (NNS shells)))))) (. .)))
Most reptiles lay amniotic eggs covered with leathery or calcareous shells.
(ROOT (S (NP (JJS Most) (NNS reptiles)) (VP (VBD lay) (NP (JJ amniotic) (NNS eggs))) (. .)))