Bill is related to Cost. Cost is related to Property. 
Doctor is related to Illness. Illness is related to Heal. Heal is related to Overcome. Overcome is a synonym of Own. 
Bill <--RelatedTo--> Cost <--RelatedTo--> Property 
Doctor <--RelatedTo--> Illness <--RelatedTo--> Heal <--RelatedTo--> Overcome <--Synonym--> Own 