TASK DEFINITION: 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.
PROBLEM: West Macedonia is one of the thirteen peripheries of Greece .

SOLUTION: Western Macedonia ( , " Dytiki ́ Makedoni ́ a " ) is one of the thirteen regions of Greece , consisting of the western part of Greek Macedonia .

PROBLEM: The Swiss Federal Council ( , , , ) is the group of seven people who are the federal government of Switzerland .

SOLUTION: The Federal Council ( , , , ) is the seven-member executive council that constitutes the federal government of the Swiss Confederation and serves as the collective head of state and of government of Switzerland .

PROBLEM: Christian rock is a type of rock music that is performed by Christians .

SOLUTION:
Christian rock is a form of rock music that features lyrics focusing on matters of Christian faith , often with an emphasis on Jesus , typically performed by self-proclaimed Christian individuals .