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", a sligthly altered version of Frédéric Chopin's Nocturne in E-flat Major Op
Edited 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", a slightly altered version of Frédéric Chopin's Nocturne in E-flat Major Op