Question: What is the population of the sovereign state that Souleymane Dela Sacko plays in?

<P0-S0> Gabon ( ; ] ), officially the Gabonese Republic (French: "République gabonaise" ), is a sovereign state on the west coast of Central Africa. <P0-S1>  Located on the equator, Gabon is bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo on the east and south, and the Gulf of Guinea to the west. <P0-S2>  It has an area of nearly 270000 sqkm and its population is estimated at 1.5 million people. <P0-S3>  Its capital and largest city is Libreville. <SEP> <P1-S0> Souleymane Dela Sacko (born August 1, 1977 in Niger) is a Nigerien football midfielder who plays for AS Mangasport in Gabon. <P1-S1>  He plays for Niger national football team. <P1-S2>  He was part of the team in World Cup qualifiers. <SEP> <P2-S0> A sovereign state is, in international law, a nonphysical juridical entity that is represented by one centralized government that has sovereignty over a geographic area. <P2-S1>  International law defines sovereign states as having a permanent population, defined territory, one government, and the capacity to enter into relations with other sovereign states. <P2-S2>  It is also normally understood that a sovereign state is neither dependent on nor subjected to any other power or state. <SEP> <P3-S0> The development of states—large-scale, populous, politically centralized, and socially stratified polities/societies governed by powerful rulers—marks one of the major milestones in the evolution of human societies. <P3-S1>  Archaeologists often distinguish between primary (or pristine) states and secondary states. <P3-S2>  Primary states evolved independently through largely internal developmental processes rather than through the influence of any other pre-existing state. <P3-S3>  The earliest known primary states appeared in Mesopotamia c. 3700 BC, in Egypt c. 3300 BC, in the Indus Valley c. 2500 BC, India c. 1700 BC, and in China c. 1600 BC. <P3-S4>  As they interacted with their less developed neighbors through trade, warfare, migration, and more generalized ideological influences, the primary states directly or indirectly fostered the emergence of secondary states in surrounding areas, for example, the Hittites in Anatolia, the Minoan and Mycenaean states of the Aegean, or the Nubian kingdoms in the Sudan. <P3-S5>  According to Professor Gil Stein of the University of Chicago Oriental Institute, "The excavations and archaeological surveys of the last few decades have vastly increased both the quantity and quality of what we know about ancient states and urbanism. <P3-S6>  Archaeologists have broadened the scope of their research beyond the traditional focus on rulers and urban elites. <P3-S7>  Current research now aims at understanding the role of urban commoners, craft specialists, and village-based farmers in the overall organization of ancient states and societies. <P3-S8>  Given the immense geographical scope encompassed by the term 'the Ancient World'". <P3-S9>  This is a list of sovereign states that existed between 700 BC and 601 BC. <P3-S10>  The notion of a sovereign state arises in the 16th century with the development of modern diplomacy. <P3-S11>  For earlier times, the term "sovereign state" is an anachronism. <P3-S12>  What corresponded to sovereign states in the medieval and ancient period were monarchs ruling by the grace of God, de facto feudal or imperial autocrats, or de facto independent nations or tribal confederations. <P3-S13>  This is a list of sovereign states that existed between 700 BC and 601 BC.