Say'un — is a city in the region and Governorate of Hadhramaut in Yemen. It is located in the middle of the Hadhramaut Valley, about 360 km from Mukalla, the capital of Mukalla District and the largest city in the area, via western route.
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Yemen, sometimes spelled Yaman, officially the Republic of Yemen, is a country at the southern end of the Arabian Peninsula in Western Asia. It is the second-largest Arab sovereign state in the peninsula, occupying 527,970 square kilometres. The coastline stretches for about 2,000 kilometres.

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