Assertion: sulfur | /r/HasProperty | required
Facets:
value: to living things
type: PURPOSE
Source sentences:
text: This compound is generally considered covalent, because sulfur is not known to form any cation with a charge of +6, as would be required for the compound to be ionic, since fluoride ion always has a charge of -1.
text: Due to sulfur being a requirement to living things, as it contains essential amino acids that are used to create proteins, sulfur water, which is commonly found in Western States of America, is a major contributor to sulfur in the herds diet.