Foot is related to Sock. Sock is related to Fabric. Fabric is related to Sheep. Sheep is related to Farmer. 
Saving is related to Rescue. Rescue is a synonym of Release. Release is related to Art. Art is related to Block. 
Foot <--RelatedTo--> Sock <--RelatedTo--> Fabric <--RelatedTo--> Sheep <--RelatedTo--> Farmer 
Saving <--RelatedTo--> Rescue <--Synonym--> Release <--RelatedTo--> Art <--RelatedTo--> Block 