Evidence is related to Testimony. Testimony is related to Statement. Statement is a synonym of Argument. Argument is a synonym of Dispute. 
Pot is a synonym of Smoke. Smoke is related to Dirty. Dirty is a type of Change. Transition is a type of Change. 
Evidence <--RelatedTo--> Testimony <--RelatedTo--> Statement <--Synonym--> Argument <--Synonym--> Dispute 
Pot <--Synonym--> Smoke <--RelatedTo--> Dirty --IsA--> Change <--IsA-- Transition 