Specific is similar to Limited. Limited is the opposite of Endless. 
Hypothesis is related to Point. Phase is a type of Point. Generation is a type of Phase. Generation is related to Coal. 
Specific <--SimilarTo--> Limited <--Antonym--> Endless 
Hypothesis <--RelatedTo--> Point <--IsA-- Phase <--IsA-- Generation <--RelatedTo--> Coal 