Complex sentence: Deglet Nour is one of hundreds of cultivars of date palm but is, according to the Food and Agriculture Organization of the United Nations (FAO), the is the leading date in terms of export value.
Split into simpler sentences: Deglet Nour is one of hundreds of cultivars of date palms. According to the Food and Agriculture Organization of the United Nations (FAO), the deglet nour cultivar is classified as the main date category according to its export value.