Agricultural is related to Farmer. Farmer is the opposite of Industrial. 
Fabric is related to Tent. Tent is related to Temporary. Temporary is related to Rent. Rent is a synonym of Rental. 
Agricultural <--RelatedTo--> Farmer <--Antonym--> Industrial 
Fabric <--RelatedTo--> Tent <--RelatedTo--> Temporary <--RelatedTo--> Rent <--Synonym--> Rental 