( ( ( ( ( He ( can ( throw ( ( either ( ( one or ) both ) ) ( to ( his offspring ) ) ) ) ) ) , ) but ) ( he ( ( does n't ) ( have ( ( ( pink skin ) or ) ( blue eyes ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP He)) (VP (MD can) (VP (VB throw) (NP (NP (CC either) (CD one) (CC or) (CD both)) (PP (TO to) (NP (PRP$ his) (NN offspring))))))) (, ,) (CC but) (S (NP (PRP he)) (VP (VBZ does) (RB n't) (VP (VB have) (NP (NP (JJ pink) (NN skin)) (CC or) (NP (JJ blue) (NNS eyes)))))) (. .)))
He can throw either one or both to his offspring, but he doesn't have pink skin or blue eyes.
(ROOT (S (NP (DT A) (JJ human) (NN offspring)) (VP (VBP inherit) (NP (JJ blue) (NNS eyes))) (. .)))