Learning can be Fun. Learning can be Exciting. Exciting is related to Cool. Cool is a synonym of Acceptable. 
Climb is related to Travel. Angle is a type of Travel. Angle is a synonym of Perspective. 
Fun <--HasProperty-- Learning --HasProperty--> Exciting <--RelatedTo--> Cool <--Synonym--> Acceptable 
Climb <--RelatedTo--> Travel <--IsA-- Angle <--Synonym--> Perspective 