Parking is a type of Driving. Driving requires Gasoline. Gasoline is related to Car. 
Soldier can be used for Guard. Soldier is a type of Person. Suspect is a type of Person. Suspect is a synonym of Suspicious. 
Parking --IsA--> Driving --HasPrerequisite--> Gasoline <--RelatedTo--> Car 
Guard <--UsedFor-- Soldier --IsA--> Person <--IsA-- Suspect <--Synonym--> Suspicious 