Network is derived from Net. Net is a synonym of Catch. Catch is a type of Object. Object is a different concept from Line. 
Function is related to Sweat. Sweater is derived from Sweat. Sweater is a type of Top. 
Network --DerivedFrom--> Net <--Synonym--> Catch --IsA--> Object <--DistinctFrom--> Line 
Function <--RelatedTo--> Sweat <--DerivedFrom-- Sweater --IsA--> Top 