Ethnic is a type of Person. Person is part of Humanity. Humanity is related to World. 
Wait is etymologically related to Watch. Watch is related to Movie. Movie is related to Bat. 
Ethnic --IsA--> Person --PartOf--> Humanity <--RelatedTo--> World 
Wait --EtymologicallyRelatedTo--> Watch <--RelatedTo--> Movie <--RelatedTo--> Bat 