original: Post-hardcore is a music genre that evolved from hardcore punk, itself an offshoot of the broader punk rock movement.
simplifications: Post-hardcore music came from hardcore punk, which came from the punk rock movement. Post-hardcore is a music genre that was created from hardcore punk. The later is also a part of the punk rock movement. Post-hardcore is music that came from hardcore punk, which came from the broader punk rock movement. Post-hardcore is a music genre that evolved from hardcore punk, a branch of the larger punk rock movement. Post-hardcore is a music genre that evolved from hardcore punk. That comes from the broader punk rock movement. Post-hardcore is a music genre that developed from hardcore punk. Post-hardcore is a music genre. It evolved from hardcore punk. Hardcore punk was an offshoot of the broader punk rock movement. Post-hardcore is music that came from hardcore punk, itself an branch of the overall punk rock movement. Post-hardcore is a music genre that evolved from hardcore punk.  It is an offshoot of the broader punk rock movement. Post-hardcore is a music category that moved from hardcore punk, itself a branch of the broader punk rock movement.