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.

Ex Input:
Cygnus X-1 was the first X-ray source accepted as a black hole .

Ex Output:
Cygnus X-1 ( abbreviated Cyg X-1 ) is a galactic X-ray source in the constellation Cygnus , and the first such source widely accepted to be a black hole .


Ex Input:
Foolscap is paper cut to the size of 8 + 1/2 xx , sometimes 13 xx .

Ex Output:
Foolscap folio ( commonly contracted to foolscap or folio and in short FC ) is paper cut to the size of 8 + 1/2 xx ( for " normal " writing paper , 13 xx ) .


Ex Input:
As with the other Soviet republics , Turkmenia followed the Marxist – Leninist ideology .

Ex Output:

As with the other Soviet republics , Turkmenistan had followed the Marxist – Leninist ideology governed by the republic 's sole party , Communist Party of Turkmenistan , a republican branch of the Communist Party of the Soviet Union .