Complex sentence: In 1915 in the Adana Vilayet lived 403,400 people, including Turks, Armenians, Greeks, Cherkes, Arabs, Turkmens, Kurds, Yörüks and Gypsies.
Split into simpler sentences: In 1915 in the Adana Vilayet lived 403,400 people. Others were Turks, Greeks, Cherkes, Arabs, Turkmens, Kurds, Yörüks and Gypsies.