Dying can cause/lead to Grief. Dying can cause/lead to Dead. Dead is the opposite of Birthday. Birthday can cause/lead to Party. 
Mansion is related to Estate. Estate is a synonym of Land. Land is related to Solid. 
Grief <--Causes-- Dying --Causes--> Dead <--Antonym--> Birthday --Causes--> Party 
Mansion <--RelatedTo--> Estate <--Synonym--> Land <--RelatedTo--> Solid 