( ( Two ( blue ( eye parents ) ) ) ( ( ( will always ) ( ( produce ( blue ( eyed offspring ) ) ) ( because ( it ( ( involves only ) ( recessive ( blue ( eye genes ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (CD Two) (JJ blue) (NN eye) (NNS parents)) (VP (MD will) (ADVP (RB always)) (VP (VB produce) (NP (JJ blue) (JJ eyed) (NN offspring)) (SBAR (IN because) (S (NP (PRP it)) (VP (VBZ involves) (RB only) (VP (VB recessive) (NP (JJ blue) (NN eye) (NNS genes)))))))) (. .)))
Two blue eye parents will always produce blue eyed offspring because it involves only recessive blue eye genes.
(ROOT (S (NP (DT A) (JJ human) (NN offspring)) (VP (VBP inherit) (NP (JJ blue) (NNS eyes))) (. .)))