Count is related to Math. Math is related to Double. Double is related to Bed. Bed is related to Surface. 
Burning is a type of Execution. Burning is related to Smoke. Smoke is related to Pipe. 
Count <--RelatedTo--> Math <--RelatedTo--> Double <--RelatedTo--> Bed <--RelatedTo--> Surface 
Execution <--IsA-- Burning <--RelatedTo--> Smoke <--RelatedTo--> Pipe 