Routine is a synonym of Act. Activity is a type of Act. Activity is related to Sex. 
War is related to Action. Action is a synonym of Course. Course is related to Park. Park is related to Municipal. 
Routine <--Synonym--> Act <--IsA-- Activity <--RelatedTo--> Sex 
War <--RelatedTo--> Action <--Synonym--> Course <--RelatedTo--> Park <--RelatedTo--> Municipal 