Cash is related to Cotton. Cotton is related to Sock. Sock is related to Fabric. 
Utility is related to Bill. Bill is related to Final. Final is related to Period. Period is related to Present. 
Cash <--RelatedTo--> Cotton <--RelatedTo--> Sock <--RelatedTo--> Fabric 
Utility <--RelatedTo--> Bill <--RelatedTo--> Final <--RelatedTo--> Period <--RelatedTo--> Present 