This picture taken earlier this month shows clothes laid on the ground of a classroom inside a school in the village of Kocho , south of the Yazidi hub of Sinjar in northern Iraq. In 2014, ISIS militants perpetrated the Sinjar massacre, killing 2,000 Yazidi men and taking Yazidi women into slavery, leading to a mass exodus of Yazidi residents. (AAP Image/NEWZULU/Ali Salim).