Heaven is related to Tale. Toll is etymologically related to Tale. Toll is a synonym of Bell. Bell is related to Christmas. 
Net is related to Fish. Fish is a type of Person. Trainer is a type of Person. Trainer is a synonym of Coach. 
Heaven <--RelatedTo--> Tale <--EtymologicallyRelatedTo-- Toll <--Synonym--> Bell <--RelatedTo--> Christmas 
Net <--RelatedTo--> Fish --IsA--> Person <--IsA-- Trainer <--Synonym--> Coach 