Concede is a type of Give. Give is related to Introduce. Introduce is a type of Inform. 
Past is related to Present. Present is a synonym of Award. Award is a synonym of Grant. 
Concede --IsA--> Give <--RelatedTo--> Introduce --IsA--> Inform 
Past <--RelatedTo--> Present <--Synonym--> Award <--Synonym--> Grant 