Teacher is related to Classroom. Classroom is related to Desk. Desk is related to Office. 
Extreme is related to Want. Want is related to Engagement. Engagement is related to Ring. Ring is related to Mood. 
Teacher <--RelatedTo--> Classroom <--RelatedTo--> Desk <--RelatedTo--> Office 
Extreme <--RelatedTo--> Want <--RelatedTo--> Engagement <--RelatedTo--> Ring <--RelatedTo--> Mood 