Relation is related to People. you are likely to find People in/at/on Ground. Ground is related to Bury. 
Picture is related to Map. you are likely to find Route in/at/on Map. Route is a synonym of Path. 
Relation <--RelatedTo--> People --AtLocation--> Ground <--RelatedTo--> Bury 
Picture <--RelatedTo--> Map <--AtLocation-- Route <--Synonym--> Path 