Snap is a synonym of Click. Click can cause/lead to Understand. Understand is related to Recognize. 
Face is a type of Cover. Brush is a type of Cover. you are likely to find Hair in/at/on Brush. 
Snap <--Synonym--> Click --Causes--> Understand <--RelatedTo--> Recognize 
Face --IsA--> Cover <--IsA-- Brush <--AtLocation-- Hair 