Benefit is related to Reward. Reward is related to Back. Guarantee is a type of Back. 
Stair is related to Climb. Climb is related to Direction. Direction is a type of Position. Position is related to Duty. 
Benefit <--RelatedTo--> Reward <--RelatedTo--> Back <--IsA-- Guarantee 
Stair <--RelatedTo--> Climb <--RelatedTo--> Direction --IsA--> Position <--RelatedTo--> Duty 