Assertion: foam's density | /r/HasProperty | high
Facets:
Source sentences:
text: Open cell foam can also be manufactured at both high and low densities.
text: Flexible foams have an open cell structure and can be produced in both high and low densities.
text: Upholstery foam that is high density allows sofas and chairs to provide comfortable sitting for many years before any sagging or indentations begin to appear underneath the upholstery.