Requirement is related to Duty. Duty is related to Army. 
you are likely to find Level in/at/on Garage. you are likely to find Rope in/at/on Garage. Rope is related to Thick. Thick is the opposite of Narrow. 
Requirement <--RelatedTo--> Duty <--RelatedTo--> Army 
Level --AtLocation--> Garage <--AtLocation-- Rope <--RelatedTo--> Thick <--Antonym--> Narrow 