Assertion: envelope | /r/MadeOf | paper
Facets:
value: usually
type: DEGREE
Source sentences:
text: As envelopes are made of paper, they are intrinsically amenable to embellishment with additional graphics and text over and above the necessary postal markings.
text: Most envelopes are made from paper.
text: Envelopes are usually made of paper or hardened paper.
text: An envelope is a flat, flexible container, made of paper or similar material, that has a single opening and a flap that can be sealed over the opening.
text: Most envelopes are made from paper.