Assertion: picket fence's picket | /r/AtLocation | horizontal rails
Facets:
Source sentences:
text: Picket fences are a type of fence often used decoratively for domestic boundaries, distinguished by their evenly spaced vertical boards, the pickets, attached to horizontal rails.
text: A picket fence is ideal for Federation homes and consists of a number of evenly spaced pickets attached to two horizontal rails supported by posts spaced about 2m apart.
text: Once they are set, the horizontal rails are affixed to the posts using fasteners, and finally the pickets can be attached to the horizontal rails.