Abstract is a synonym of Steal. Get requires Steal. Guess is etymologically related to Get. 
Tall is related to Corn. Corn is related to Farmer. Farmer is related to Working. Working is related to Busy. 
Abstract <--Synonym--> Steal <--HasPrerequisite-- Get <--EtymologicallyRelatedTo-- Guess 
Tall <--RelatedTo--> Corn <--RelatedTo--> Farmer <--RelatedTo--> Working <--RelatedTo--> Busy 