Assertion: rifle's sight | /r/CapableOf | add protection
Facets:
value: for the post
type: PURPOSE
Source sentences:
text: On later models the post front sight was hooded to reduce glare under unfavourable light conditions and add protection for the post.
text: From 1939 onwards the post front sight was hooded to reduce glare under unfavourable light conditions and add protection for the post.