Band is etymologically related to Bind. Band is related to Stone. you are likely to find Stone in/at/on Driveway. Driveway can be used for Truck. 
Radar is related to Bat. you are likely to find Bat in/at/on Bridge. Contract is part of Bridge. Contract is related to Promise. 
Bind <--EtymologicallyRelatedTo-- Band <--RelatedTo--> Stone --AtLocation--> Driveway --UsedFor--> Truck 
Radar <--RelatedTo--> Bat --AtLocation--> Bridge <--PartOf-- Contract <--RelatedTo--> Promise 