Major is a type of Study. Learn requires Study. School can be used for Learn. School is related to Master. 
Unfold is a type of Reveal. Unfold is a synonym of Extend. Extend is a synonym of Stretch. Stretch is related to Flexibility. 
Major --IsA--> Study <--HasPrerequisite-- Learn <--UsedFor-- School <--RelatedTo--> Master 
Reveal <--IsA-- Unfold <--Synonym--> Extend <--Synonym--> Stretch <--RelatedTo--> Flexibility 