Coach is a synonym of Train. Train is related to Transportation. Transportation is a type of Movement. Movement is related to Fast. 
Door is a type of Structure. Door is related to Board. Board is related to Field. Field is a synonym of Respond. 
Coach <--Synonym--> Train <--RelatedTo--> Transportation --IsA--> Movement <--RelatedTo--> Fast 
Structure <--IsA-- Door <--RelatedTo--> Board <--RelatedTo--> Field <--Synonym--> Respond 