Buddy is related to Horse. Horse is related to Farm. Farm is related to Range. 
Explosion is a type of Noise. Noise is related to Term. Term is related to Fuel. 
Buddy <--RelatedTo--> Horse <--RelatedTo--> Farm <--RelatedTo--> Range 
Explosion --IsA--> Noise <--RelatedTo--> Term <--RelatedTo--> Fuel 