Pioneer is a type of Introduce. Pioneer is related to West. West is a type of Film. Stuff is a type of Film. 
Violence is related to Attack. Attack is the opposite of Block. Block is a synonym of Bar. 
Introduce <--IsA-- Pioneer <--RelatedTo--> West --IsA--> Film <--IsA-- Stuff 
Violence <--RelatedTo--> Attack <--Antonym--> Block <--Synonym--> Bar 