Sand is related to Rough. Rough is related to Surface. Surface can be used for Counter. 
you are likely to find Mall in/at/on Downtown. Mall is a synonym of Sidewalk. Sidewalk is a type of Walk. 
Sand <--RelatedTo--> Rough <--RelatedTo--> Surface --UsedFor--> Counter 
Downtown <--AtLocation-- Mall <--Synonym--> Sidewalk --IsA--> Walk 