Assertion: grain's fiber | /r/HasProperty | insoluble
Facets:
Source sentences:
text: Abundant not just in brown rice but all whole grains, insoluble fiber is also found in nuts and the edible skin of fruits and vegetables including tomatoes, cucumbers, many squash, apples, berries, and pears.
text: Barley is high in fiber, both the soluble and insoluble kind.