Assertion: estrogen | /r/HasAspect | four classes
Facets:
Source sentences:
text: Estrogen can be divided into four classes: 1) Animal Estrogens that includes estrone (E1), estradiol (E2), and estriol (E3); 2) Plant Estrogens (Phytoestrogens); 3) Fungi Estrogens (Mycoestrogens) and 4) Synthetic Estrogens (xenoestrogens).