Evidence is related to Body. Body is related to Back. Back is related to Rub. Rub is related to Meat. 
Layer is a type of Artifact. Car is a type of Artifact. Car is a synonym of Machine. Machine can be used for Combine. 
Evidence <--RelatedTo--> Body <--RelatedTo--> Back <--RelatedTo--> Rub <--RelatedTo--> Meat 
Layer --IsA--> Artifact <--IsA-- Car <--Synonym--> Machine --UsedFor--> Combine 