Assertion: iodine | /r/HasProperty | occurring element
Facets:
value: naturally
type: MANNER
Source sentences:
text: Iodine is a naturally occurring element that is essential for the good health of people and animals.
text: Iodine is a naturally occurring element that is required for good health.
text: Iodine is a naturally occurring element found in sea water and in certain rocks and sediments.