Laugh is related to Noise. Noise is related to Headache. one thing you do when you Contemplate is Headache. Confusion would make you want to Contemplate. 
Calendar is a type of Arrangement. Design is a type of Arrangement. Design is related to Scheme. 
Laugh <--RelatedTo--> Noise <--RelatedTo--> Headache <--HasSubevent-- Contemplate <--CausesDesire-- Confusion 
Calendar --IsA--> Arrangement <--IsA-- Design <--RelatedTo--> Scheme 