Assertion: kelp's iodine | /r/AtLocation | table salt
Facets:
value: commonly
type: TEMPORAL
value: to assure
type: PURPOSE
value: in many countries
type: LOCATION
Source sentences:
text: In many countries, iodine is added to table salt to assure adequate levels are attained.
text: To help prevent the problem of deficiency, iodine is commonly added to table salt.