Assertion: foam | /r/HasProperty | identified with the number
Facets:
Source sentences:
text: For example, if a foam is identified with the number 1835, the 18 means a cubic foot of this foam weighs 1.8 pounds (The heavier a piece of foam, the longer it will maintain its shape), and the 35 means it takes 35 pounds of pressure to compress a piece of this foam to 25% of its original height (