. "15.04 Vivid Vervet" . "Ubuntu (originally /\u028A\u02C8bu\u02D0nt\u028A/ uu-BOON-tuu, according to the company website /\u028A\u02C8b\u028Antu\u02D0/ uu-BUUN-too) is a Debian-based Linux operating system and distribution, with Unity as its default desktop environment for personal computers including smartphones in later versions. Ubuntu also runs network servers."@en . . . "Current" . . . . . . "Ubuntu"@en . . .