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: 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 .

PROBLEM: Sundbyberg Municipality is a municipality in Stockholm County in central Sweden .

SOLUTION: Sundbyberg Municipality ( " Sundbybergs kommun " or " Sundbybergs stad " ) is a municipality in Stockholm County in east central Sweden , just north of the capital Stockholm .

PROBLEM: As the air rapidly rises , the hot air is stretched vertically and because of angular momentum , the spinning gets much more intense .

SOLUTION:
As the air rapidly rises , the column of hot air is stretched vertically , thereby moving mass closer to the axis of rotation , which causes intensification of the spinning effect by conservation of angular momentum .

