Yard is a synonym of Garden. Garden is related to Group. Group is a synonym of Sort. 
Election is related to Event. Event is related to Operation. Operation is related to Mission. Promise is etymologically related to Mission. 
Yard <--Synonym--> Garden <--RelatedTo--> Group <--Synonym--> Sort 
Election <--RelatedTo--> Event <--RelatedTo--> Operation <--RelatedTo--> Mission <--EtymologicallyRelatedTo-- Promise 