Original sentence: Cermna Finn, son of Ebric and a great great grandson of Míl Espáine, was, according to medieval Irish legend and historical tradition, joint High King of Ireland with his brother Sobairce
Edited sentence: Cermna Finn, son of Ebric and a great, great grandson of Míl Espáine, was, according to medieval Irish legend and historical tradition, joint High King of Ireland with his brother Sobairce