Dna can be used for Convict. Dna is related to Blood. Blood is related to Wine. Wine is related to Crush. 
Fire is a type of Bake. Fire is related to Source. Source is a type of Obtain. 
Convict <--UsedFor-- Dna <--RelatedTo--> Blood <--RelatedTo--> Wine <--RelatedTo--> Crush 
Bake <--IsA-- Fire <--RelatedTo--> Source --IsA--> Obtain 