Package is a synonym of Software. Alien is a type of Software. Alien is a synonym of Exotic. Exotic is similar to Strange. 
Serve is a synonym of Attend. Attend is a synonym of See. See is related to Common. Common is the opposite of Elite. 
Package <--Synonym--> Software <--IsA-- Alien <--Synonym--> Exotic <--SimilarTo--> Strange 
Serve <--Synonym--> Attend <--Synonym--> See <--RelatedTo--> Common <--Antonym--> Elite 