Stroke is related to Broad. Broad is the opposite of Short. Short is a different concept from Long. Long is the opposite of Instant. 
Placement is derived from Place. Placement is related to Middle. 
Stroke <--RelatedTo--> Broad <--Antonym--> Short <--DistinctFrom--> Long <--Antonym--> Instant 
Place <--DerivedFrom-- Placement <--RelatedTo--> Middle 