Art is related to Stock. Stock is similar to Standard. Standard is similar to Acceptable. 
Leg can be used for Hold. Hold is related to Prevent. Restrict is a type of Prevent. 
Art <--RelatedTo--> Stock <--SimilarTo--> Standard <--SimilarTo--> Acceptable 
Leg --UsedFor--> Hold <--RelatedTo--> Prevent <--IsA-- Restrict 