Butter is related to Milk. Milk is related to Cream. Cream is related to Addition. 
one thing you do when you Surprising is Laugh. Surprising can cause/lead to Joy. Joy is related to Complete. Complete is related to Comprehensive. 
Butter <--RelatedTo--> Milk <--RelatedTo--> Cream <--RelatedTo--> Addition 
Laugh <--HasSubevent-- Surprising --Causes--> Joy <--RelatedTo--> Complete <--RelatedTo--> Comprehensive 