Assertion: memory foam | /r/MadeOf | polyurethane
Facets:
Source sentences:
text: Traditional memory foam: Also known as viscoelastic foam, traditional memory foam is made from polyurethane, a petroleum derivative.
text: Traditional memory foam: Also known as viscoelastic foam, traditional memory foam is made from polyurethane, a petroleum derivative.
text: Also known as viscoelastic foam, traditional memory foam is made from polyurethane, a petroleum derivative.
text: Also known as viscoelastic foam, traditional memory foam is made from polyurethane, a petroleum derivative.