Report is related to Condition. Condition is related to Syndrome. Syndrome is a type of Complex. Complex is related to Compound. 
Sleep is related to Eye. Eye is related to Machine. 
Report <--RelatedTo--> Condition <--RelatedTo--> Syndrome --IsA--> Complex <--RelatedTo--> Compound 
Sleep <--RelatedTo--> Eye <--RelatedTo--> Machine 