Tax is a type of Determine. Determine is a synonym of Settle. Clear is a type of Settle. Clear is a synonym of Solve. 
Fly is a type of Operate. Fly can be Small. 
Tax --IsA--> Determine <--Synonym--> Settle <--IsA-- Clear <--Synonym--> Solve 
Operate <--IsA-- Fly --HasProperty--> Small 