Request is a type of Communicate. Communicate is related to Writing. one thing you do when you Writing is Acknowledge. Acknowledge is a synonym of Concede. 
Chapter is the opposite of Page. Page is related to Bottom. 
Request --IsA--> Communicate <--RelatedTo--> Writing --HasSubevent--> Acknowledge <--Synonym--> Concede 
Chapter <--Antonym--> Page <--RelatedTo--> Bottom 