Assertion: bulk laxative | /r/CapableOf | absorb water
Facets:
Source sentences:
text: Once bulk laxatives absorb water, they cause distension of the bowel and trigger bowel movement via wave-like muscle contractions (peristalsis).﻿﻿
text: Bulk laxatives and fiber like Metamucil  absorb water and expand to increase bulk and moisture in the stool.