you would Grin because Funny. Funny is related to Bishop. Bishop is related to Pastor. 
Smoke is related to Artificial. Artificial is related to Machine. Tank is a type of Machine. 
Grin --MotivatedByGoal--> Funny <--RelatedTo--> Bishop <--RelatedTo--> Pastor 
Smoke <--RelatedTo--> Artificial <--RelatedTo--> Machine <--IsA-- Tank 