sentences:  Jair Loredo returned to K-Paz in 2007.On May 28, 2007, Sergio Gomez Wanted To Be A Solo Artist With The Name Of K-Paz Dela Sierra & Because Of This All Members Except Beto Duran Left the group to form AK-7, which stands for "Antes K-Paz", which translates literally to "Before K-Paz" signaling that they were once K-paz.The 7 refers to the number of members who left K-Paz.