. . "Ursiniru"@en . "Tree city on the planet Castor."@en . "Tree city on the planet Castor."@en . . "The tree-city of Ursiniru is the capital of Castor, home to the Council of High Sages. It is also a major population center and spaceport city."@en . "The tree-city of Ursiniru is the capital of Castor, home to the Council of High Sages. It is also a major population center and spaceport city."@en . . .