Assertion: acrylic | /r/HasProperty | tough
Facets:
value: with half the weight of glass
type: OTHER
Source sentences:
text: Acrylic is tough and durable, but can also be easily scratched.
text: Acrylic is a tough plastic with half the weight of glass, and which can be colored or transparent.
text: Acrylic is a tough transparent plastic, an alternative to glass, that first appeared on the market as the trademark, Plexiglass™.