Money is related to Deposit. Deposit is related to Safe. Safe is related to Comfortable. 
Tank is related to Top. Top is a different concept from Slope. Slope is related to Ground. Ground is related to Building. 
Money <--RelatedTo--> Deposit <--RelatedTo--> Safe <--RelatedTo--> Comfortable 
Tank <--RelatedTo--> Top <--DistinctFrom--> Slope <--RelatedTo--> Ground <--RelatedTo--> Building 