Variation is a type of Thing. Thing is a synonym of Clothes. you are likely to find Clothes in/at/on Shop. 
Dock is a type of Enter. Enter is related to Line. Line can be used for Arrange. 
Variation --IsA--> Thing <--Synonym--> Clothes --AtLocation--> Shop 
Dock --IsA--> Enter <--RelatedTo--> Line --UsedFor--> Arrange 