Complex sentence: He spent seven years imprisoned in the Federal Correctional Complex, Terre Haute, Indiana; a rough prison, he had originally been sentenced to Butner, but agent Lovato insisted that he instead serve time at Terre Haute.
Split into simpler sentences: He spent seven years imprisoned in the Federal Correctional Complex, Terre Haute, Indiana, a rough prison. He had originally been sentenced to Butner, but agent Lovato insisted that he instead serve time at Terre Haute.