Confusion is a synonym of Mess. Mess is a type of Disorder. Disorder is a synonym of Disturb. Disturb is a synonym of Eat. 
Theology is a type of System. System is related to Door. Door is related to Device. 
Confusion <--Synonym--> Mess --IsA--> Disorder <--Synonym--> Disturb <--Synonym--> Eat 
Theology --IsA--> System <--RelatedTo--> Door <--RelatedTo--> Device 