Open is a type of Expose. Expose is a type of Subject. Subject is a type of Message. Approval is a type of Message. 
one thing you do when you Contemplate is Headache. Headache is a synonym of Bother. Bother is a synonym of Devil. 
Open --IsA--> Expose --IsA--> Subject --IsA--> Message <--IsA-- Approval 
Contemplate --HasSubevent--> Headache <--Synonym--> Bother <--Synonym--> Devil 