Math is related to Topic. Topic is a synonym of Matter. Matter is related to Private. Private is a synonym of Intimate. 
Mine is related to Possession. Possession is related to Ownership. Ownership is related to Patent. 
Math <--RelatedTo--> Topic <--Synonym--> Matter <--RelatedTo--> Private <--Synonym--> Intimate 
Mine <--RelatedTo--> Possession <--RelatedTo--> Ownership <--RelatedTo--> Patent 