"Zwartsluisje is a town in the Dutch province of South Holland. It is a part of the municipality of Korendijk, and lies about 7 km (4 mi) south of Spijkenisse.The statistical area \"Zwartsluisje\", which also can include the surrounding countryside, has a population of around 150."@en . . "Zwartsluisje"@en . "150"^^ . . . . . "+1" . "+2" . . . "2005-01-01Z"^^ .