Have is related to Owner. Owner is related to Boss. you are likely to find Boss in/at/on Conference. you are likely to find Hall in/at/on Conference. 
Race is a type of Act. Race is related to Match. 
Have <--RelatedTo--> Owner <--RelatedTo--> Boss --AtLocation--> Conference <--AtLocation-- Hall 
Act <--IsA-- Race <--RelatedTo--> Match 