In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
One example: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Solution is here: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Explanation: The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

Now, solve this: The Istanbul Pogrom was a pogrom directed primarily against the Istanbul 's Greek minority on September 6 and 7 , 1955 .
Solution:
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 .