Custody is related to Adopt. Adopt is related to Home. 
Exhibition is a synonym of Show. Show is a synonym of Demonstration. you are likely to find Person in/at/on Demonstration. Rider is a type of Person. 
Custody <--RelatedTo--> Adopt <--RelatedTo--> Home 
Exhibition <--Synonym--> Show <--Synonym--> Demonstration <--AtLocation-- Person <--IsA-- Rider 