you are likely to find Drunk in/at/on Jail. you are likely to find Bread in/at/on Jail. Bread is related to Cheap. Cheap is related to Trailer. 
Dealer is a type of Firm. 
Drunk --AtLocation--> Jail <--AtLocation-- Bread <--RelatedTo--> Cheap <--RelatedTo--> Trailer 
Dealer --IsA--> Firm 