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.
Example: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Example solution: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Example explanation: The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

Problem: In August 1963 , King spoke of President Lincoln and his well-known words : " Five score years ago , a great American , in whose symbolic shadow we stand today , signed the Emancipation Proclamation .

Solution: Standing on the steps of the Lincoln Memorial in August 1963 , King began with a reference , by the style of his opening phrase , to President Lincoln and his enduring words : " Five score years ago , a great American , in whose symbolic shadow we stand today , signed the Emancipation Proclamation .