Trainer is a type of Person. Person is a type of Organism. Carrier is a type of Organism. Carrier is a type of Chemical. 
Deck is a synonym of Grace. Grace is a synonym of Thanksgiving. Thanksgiving is related to Family. 
Trainer --IsA--> Person --IsA--> Organism <--IsA-- Carrier --IsA--> Chemical 
Deck <--Synonym--> Grace <--Synonym--> Thanksgiving <--RelatedTo--> Family 