Task: Sentence Expansion
Input (English): The Istanbul Pogrom was a pogrom directed primarily against the Istanbul 's Greek minority on September 6 and 7 , 1955 .
Output (English): The Istanbul pogrom , also known as the Istanbul riots or September events ( " Septemvriana " , " Events of September " ; , " Events of September 6 – 7 " ) , were organized mob attacks directed primarily at Istanbul 's Greek minority on 6 – 7 September 1955 .