Original sentence: Following the conclusion of the treasure hunt on 21 July 2009, the song was made available for download from the microsite, complete with ending piano sonata "Collateral Damage"
Edited sentence: 2, with additional sounds of playing children, and a jet fighter or perhaps a missile.9 No.Following the conclusion of the treasure hunt on 21 July 2009, the song was made available for download from the microsite, complete with ending piano sonata "Collateral Damage", a sligthly altered version of Frédéric Chopin's Nocturne in E-flat Major Op