Beautiful is a synonym of Great. Great is related to Camp. Camp is related to Outside. Outside is related to Atmosphere. 
Mathematics is related to Average. Average is a synonym of Usual. Usual is a different concept from Weird. Weird is etymologically related to Worth. 
Beautiful <--Synonym--> Great <--RelatedTo--> Camp <--RelatedTo--> Outside <--RelatedTo--> Atmosphere 
Mathematics <--RelatedTo--> Average <--Synonym--> Usual <--DistinctFrom--> Weird --EtymologicallyRelatedTo--> Worth 