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 Q]: A eulerian path in a graph is one that visits each edge of the graph once only .
[EX A]: In graph theory , an Eulerian trail ( or Eulerian path ) is a trail in a finite graph that visits every edge exactly once ( allowing for revisiting vertices ) .

[EX Q]: The Civil Registry and Identification Service is an institution for public service in Chile .
[EX A]: The Civil Registry and Identification Service is the Chilean public service in charge of registering civil statuses of persons and other issues which , by law , it has to register .

[EX Q]: A flag carrier is an airline or ship line that is owned by the government of the country it is based in .
[EX A]:
A flag carrier is a transportation company , such as an airline or shipping company , that , being locally registered in a given sovereign state , enjoys preferential rights or privileges accorded by the government for international operations .