Teaching requires Degree. Degree is related to Piece. Piece is related to Story. 
Meet is related to Greet. Greet is a type of Communicate. Communicate requires Think. Think is a synonym of Imagine. 
Teaching --HasPrerequisite--> Degree <--RelatedTo--> Piece <--RelatedTo--> Story 
Meet <--RelatedTo--> Greet --IsA--> Communicate --HasPrerequisite--> Think <--Synonym--> Imagine 