Unlike is a synonym of Other. Other is related to Ambassador. Ambassador is a type of Diplomat. Diplomat is a type of Official. 
Protective is related to Skin. Investment is a type of Skin. Investment is related to Capital. Capital is related to Wealth. 
Unlike <--Synonym--> Other <--RelatedTo--> Ambassador --IsA--> Diplomat --IsA--> Official 
Protective <--RelatedTo--> Skin <--IsA-- Investment <--RelatedTo--> Capital <--RelatedTo--> Wealth 