Soft is the opposite of Harsh. Harsh is related to Shock. Shock is related to Factor. 
you are likely to find Pad in/at/on Store. Pad is related to Dock. Dock is a type of Steer. 
Soft <--Antonym--> Harsh <--RelatedTo--> Shock <--RelatedTo--> Factor 
Store <--AtLocation-- Pad <--RelatedTo--> Dock --IsA--> Steer 