Assertion: blackboard | /r/HasProperty | painted with matte dark paint
Facets:
Source sentences:
text: A blackboard can simply be a board painted with matte dark paint (usually black, occasionally dark green).
text: A blackboard can simply be a board painted with matte dark paint (usually black, occasionally dark green).
text: A blackboard can simply be a piece of board painted with matte dark paint (usually black, occasionally dark green).