Yield is related to Crop. Grass is a type of Crop. 
Alarm would make you want to Awake. Alarm is related to Smoke. the last thing you do when you Smoke is Die. Die is related to Hang. 
Yield <--RelatedTo--> Crop <--IsA-- Grass 
Awake <--CausesDesire-- Alarm <--RelatedTo--> Smoke --HasLastSubevent--> Die <--RelatedTo--> Hang 