Assertion: fibreglass eraser | /r/ObjectUse | used as an example of an unusual use
Facets:
value: for preparing a pterosaur fossil
type: PURPOSE
Source sentences:
text: As an example of an unusual use, a fibreglass eraser was used for preparing a Pterosaur fossil embedded in a very hard and massive limestone.
text: As an example of an unusual use, a fibreglass eraser was used for preparing an archaeological fossil embedded in a very hard and massive limestone.