you are likely to find Human in/at/on Airport. 
Equip is a synonym of Accomplish. Accomplish is a synonym of Complete. Complete is a synonym of Nail. you are likely to find Nail in/at/on Finger. 
Airport <--AtLocation-- Human 
Equip <--Synonym--> Accomplish <--Synonym--> Complete <--Synonym--> Nail --AtLocation--> Finger 