Machine can be used for Steer. Steer is a synonym of Handle. Handle is related to Take. Take is related to Flash. 
Pot is related to Water. Water is related to Tear. 
Machine --UsedFor--> Steer <--Synonym--> Handle <--RelatedTo--> Take <--RelatedTo--> Flash 
Pot <--RelatedTo--> Water <--RelatedTo--> Tear 