Pursuit is a synonym of Chase. Chase wants (to) Sex. Fucking is the Sex. Sofa can be used for Fucking. 
Volume is related to Quiet. the first thing you do when you Listen is Quiet. Listen is a synonym of Observe. Contemplate requires Observe. 
Pursuit <--Synonym--> Chase --Desires--> Sex <--DefinedAs-- Fucking <--UsedFor-- Sofa 
Volume <--RelatedTo--> Quiet <--HasFirstSubevent-- Listen <--Synonym--> Observe <--HasPrerequisite-- Contemplate 