Custom is related to Tax. Tax is related to Funding. Funding is a synonym of Support. Support is a type of Influence. 
Technique is a type of Method. Method is related to Experiment. Experiment is related to Test. 
Custom <--RelatedTo--> Tax <--RelatedTo--> Funding <--Synonym--> Support --IsA--> Influence 
Technique --IsA--> Method <--RelatedTo--> Experiment <--RelatedTo--> Test 