Assertion: modern eraser | /r/HasProperty | a mixture of an abrasive
Facets:
value: usually
type: DEGREE
Source sentences:
text: The modern eraser is usually a mixture of an abrasive such as fine pumice, a rubbery matrix such as synthetic rubber or vinyl, and other ingredients.
text: The modern eraser is usually a mixture of an abrasive such as fine pumice, a rubbery matrix such as synthetic rubber or vinyl, and other ingredients