Input (grade 12): Sarah Lois Vaughan (March 27, 1924 - April 3, 1990) was an American jazz singer, described by Scott Yanow as having "one of the most wondrous voices of the 20th century."
Output (grade 7): Sarah Lois Vaughan (March 27, 1924 â "April 3, 1990) was an American jazz singer. She was described by jazz writer Scott Yanow as having" one of the most wondrous voices of the 20th century ".