Compare is related to Rate. Rate is related to Schedule. 
Mouth is related to Cheek. Cheek is related to Side. Side is related to View. Viewer is derived from View. 
Compare <--RelatedTo--> Rate <--RelatedTo--> Schedule 
Mouth <--RelatedTo--> Cheek <--RelatedTo--> Side <--RelatedTo--> View <--DerivedFrom-- Viewer 