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.

Input: Consider Input: The chair is in charge of the Board of Governors of the Federal Reserve System .

Output: The Chair of the Board of Governors of the Federal Reserve System is the head of the Federal Reserve , which is the central banking system of the United States .


Input: Consider Input: Portland stone is hard enough to resist weathering but soft enough to be worked ( cut and carved ) by stonemasons .

Output: The degree of cementation in Portland stone is such that the stone is sufficiently well cemented to allow it to resist weathering , but not so well cemented that it ca n't be readily worked ( cut and carved ) by masons .


Input: Consider Input: In November 1863 , when the military cemetery at Gettysburg , Pennsylvania was dedicated , Everett was the main speaker .


Output: In November 1863 , when the military cemetery at Gettysburg , Pennsylvania was dedicated , Everett , by then widely renowned as the finest orator in the country , was invited to be the featured speaker .


