sentences:  It also contained significant minorities in the 50,000 Arabs and 20,000 South Asians who were prominent in business and trade.The various ethnic groups were becoming mixed and the distinctions between them had blurred; according to one historian, an important reason for the general support for Sultan Jamshid was his family's ethnic diversity.However, the island's Arab inhabitants, as the major landowners, were generally wealthier than the natives; the major political parties were organised largely along ethnic lines, with Arabs dominating the Zanzibar Nationalist Party (ZNP) and natives the Afro-Shirazi Party (ASP).