Pad is a type of Structure. Structure is related to Family. Family is related to Informal. 
you are likely to find Soldier in/at/on Battle. you are likely to find Soldier in/at/on Tent. Tent is related to Temporary. 
Pad --IsA--> Structure <--RelatedTo--> Family <--RelatedTo--> Informal 
Battle <--AtLocation-- Soldier --AtLocation--> Tent <--RelatedTo--> Temporary 