Open is a type of Tournament. Open is a type of Yield. Yield is related to Sign. 
Smoke is related to Element. Element is related to Silver. Silver is related to Prize. Prize is etymologically related to Comprise. 
Tournament <--IsA-- Open --IsA--> Yield <--RelatedTo--> Sign 
Smoke <--RelatedTo--> Element <--RelatedTo--> Silver <--RelatedTo--> Prize --EtymologicallyRelatedTo--> Comprise 