Assertion: iodine | /r/HasProperty | good test
Facets:
value: for starch
type: PURPOSE
Source sentences:
text: Iodine is a good test for starch as it turns a deep blue color when it comes in contact with it.
text: It is also used prevent soreness inside the mouth or along the digestive tract, and other conditions, but there is no good scientific evidence to support these uses.