White is related to Wave. Wave is related to Hill. you are likely to find Hill in/at/on Country. Country is related to Community. 
Lesson is related to History. History is related to Social. 
White <--RelatedTo--> Wave <--RelatedTo--> Hill --AtLocation--> Country <--RelatedTo--> Community 
Lesson <--RelatedTo--> History <--RelatedTo--> Social 