Trust is a type of Lend. Trust is a synonym of Calculate. Survey is a type of Calculate. Survey is a synonym of Prospect. 
Home is related to Equity. Equity is a type of Interest. Interest is related to Money. Money is related to Economics. 
Lend <--IsA-- Trust <--Synonym--> Calculate <--IsA-- Survey <--Synonym--> Prospect 
Home <--RelatedTo--> Equity --IsA--> Interest <--RelatedTo--> Money <--RelatedTo--> Economics 