Engineer is related to Profession. Profession is related to Business. Business is related to Contract. Option is a type of Contract. 
Routine is related to Habit. Habit is related to Nose. Nose is related to Hook. 
Engineer <--RelatedTo--> Profession <--RelatedTo--> Business <--RelatedTo--> Contract <--IsA-- Option 
Routine <--RelatedTo--> Habit <--RelatedTo--> Nose <--RelatedTo--> Hook 