( ( ( ( Zygote ( MeSH ( Fertilized egg ) ) ) , ) ( 1-cell embryo ) ) ; )
(ROOT (NP (NP (NNP Zygote) (NNP MeSH) (NNP Fertilized) (NN egg)) (, ,) (NP (JJ 1-cell) (NN embryo)) (: ;)))
Zygote MeSH Fertilized egg, 1-cell embryo;
(ROOT (S (NP (NP (DT The) (VBN fertilized) (NN egg)) (SBAR (WHNP (WDT that)) (S (ADVP (RB sexually)) (VP (VBG reproducing) (S (NP (NNS organisms)) (VP (VB begin) (NP (NN life)) (SBAR (IN as) (S (VP (VBZ is) (VP (VBN known) (PP (IN as) (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-))))))))))))) (VP (VBP zygote)) (. .)))