Complex sentence: While the police and Bane's forces clash, Batman defeats Bane, but Tate intervenes and stabs Batman, revealing herself to be Talia al Ghul, Ra's al Ghul's child who escaped the prison aided by her fellow prisoner and protector, Bane.
Split into simpler sentences: While the police and Bane's forces clash, Batman defeats Bane, but Tate intervenes and stabs Batman, revealing herself to be Talia al Ghul, Ra's al Ghul's child. Talia escaped the prison aided by her fellow prisoner and protector, Bane.