Living is a different concept from Exist. Exist is the opposite of Be. Lend is a type of Be. Factor is a type of Lend. 
Reception is a type of Meeting. you are likely to find Presentation in/at/on Meeting. 
Living <--DistinctFrom--> Exist <--Antonym--> Be <--IsA-- Lend <--IsA-- Factor 
Reception --IsA--> Meeting <--AtLocation-- Presentation 