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: A siddur is a Jewish prayer book .

SOLUTION: A siddur ( Hebrew : סדור -RSB- ; plural siddurim , -RSB- ) is a Jewish prayer book , containing a set order of daily prayers .

PROBLEM: In 1972 , he was the first North American to win first prize at the Leeds Piano Competition .

SOLUTION: In 1972 , he was the first North American to win first prize at the Leeds Piano Competition , helping to cement its reputation for advancing the careers of young pianistic talent .

PROBLEM: The Dixie Chicks are Martie Maguire , Natalie Maines and Emily Robison .

SOLUTION:
Dixie Chicks are an American music group composed of founding members ( and sisters ) Martie Erwin Maguire and Emily Erwin Robison , and lead singer Natalie Maines .