Hunger would make you want to Cook. Cookie is a type of Cook. Cookie is related to Tea. Tea is related to Green. 
Cover is related to Roof. Roof is related to Floor. Floor is related to Foot. Foot is related to Limb. 
Hunger --CausesDesire--> Cook <--IsA-- Cookie <--RelatedTo--> Tea <--RelatedTo--> Green 
Cover <--RelatedTo--> Roof <--RelatedTo--> Floor <--RelatedTo--> Foot <--RelatedTo--> Limb 