Course is part of Wall. Course is related to Term. Term is related to Work. Work is related to Doctor. 
Form is related to Slope. Slope is related to Gentle. Gentle is related to Soap. Soap is related to Fat. 
Wall <--PartOf-- Course <--RelatedTo--> Term <--RelatedTo--> Work <--RelatedTo--> Doctor 
Form <--RelatedTo--> Slope <--RelatedTo--> Gentle <--RelatedTo--> Soap <--RelatedTo--> Fat 