Peanut is related to Oil. Oil is related to Heat. Laser can be used for Heat. Laser is a type of Device. 
Cover is a synonym of Continue. Continue is a type of Be. Rate is a type of Be. Rate is related to Fee. 
Peanut <--RelatedTo--> Oil <--RelatedTo--> Heat <--UsedFor-- Laser --IsA--> Device 
Cover <--Synonym--> Continue --IsA--> Be <--IsA-- Rate <--RelatedTo--> Fee 