Assertion: astatine's iodine | /r/HasProperty | essential
Facets:
value: for life
type: PURPOSE
value: in the synthesis of thyroid hormones
type: OTHER
Source sentences:
text: Iodine is essential in the synthesis of thyroid hormones.
text: Iodine is an essential element for life and, at atomic number Z = 53, is the heaviest element commonly needed by living organisms.
text: Phosphorus, sulfur, zinc, selenium, and iodine are essential nutrients, and aluminium, tin, and lead may be.