Surgery can be Risky. Risky is related to Bet. Bet is related to Place. Town is a type of Place. 
you would Punch because Hurt. Hurt is related to Blood. 
Surgery --HasProperty--> Risky <--RelatedTo--> Bet <--RelatedTo--> Place <--IsA-- Town 
Punch --MotivatedByGoal--> Hurt <--RelatedTo--> Blood 