Assertion: filter | /r/HasProperty | cleaned without damage
Facets:
value: to coatings
type: TRANSITIVE-OBJECT
value: frequently
type: TEMPORAL
value: to the lens surface
type: TRANSITIVE-OBJECT
Source sentences:
text: The filter can be cleaned frequently without damage to the lens surface or coatings; a filter scratched by cleaning is much less expensive to replace than a lens.