Advance is related to Payment. Payment is related to Claim. Claim is related to Possession. 
Tough is related to Hard. Hard is related to Book. Book is created by Author. Author is related to Writer. 
Advance <--RelatedTo--> Payment <--RelatedTo--> Claim <--RelatedTo--> Possession 
Tough <--RelatedTo--> Hard <--RelatedTo--> Book --CreatedBy--> Author <--RelatedTo--> Writer 