Car is related to Exhaust. Exhaust is a synonym of Rack. Rack is a type of Software. Echo is a type of Software. 
Term is related to Vacation. Person wants (to) Vacation. Worker is a type of Person. Coach is a type of Worker. 
Car <--RelatedTo--> Exhaust <--Synonym--> Rack --IsA--> Software <--IsA-- Echo 
Term <--RelatedTo--> Vacation <--Desires-- Person <--IsA-- Worker <--IsA-- Coach 