Enjoy is related to Employment. Employment is related to Work. Work is related to Course. 
Aluminum is related to Food. Food is a type of Content. Education is a type of Content. Educational is derived from Education. 
Enjoy <--RelatedTo--> Employment <--RelatedTo--> Work <--RelatedTo--> Course 
Aluminum <--RelatedTo--> Food --IsA--> Content <--IsA-- Education <--DerivedFrom-- Educational 