Assertion: bookmark | /r/MadeOf | leather
Facets:
value: usually
type: TEMPORAL
value: commonly
type: DEGREE
Source sentences:
text: They are usually made of paper, plastic, leather, metal, or other materials, and can be collectable items in their own right.
text: A bookmark is a thin marker, commonly made of card, leather, or fabric, used to keep a reader's place in a book and to enable them to easily return to it.
text: Bookmarks are made of a card, leather, or a piece of fabric that people use to keep their places in books.
text: They are usually made of paper, plastic, leather, metal, or other materials, and can be collectable items in their own right.