Federal is related to Deliver. Deliver is the opposite of Take. Take is a type of Become. 
Mix is related to Air. Air is a type of Fluid. Fluid is a synonym of Mobile. 
Federal <--RelatedTo--> Deliver <--Antonym--> Take --IsA--> Become 
Mix <--RelatedTo--> Air --IsA--> Fluid <--Synonym--> Mobile 