. . . "A SIR Unit is a main form of Irken technology, resembling a humanoid robot on Earth. Normally, SIR units are silver with red eyes, shoulders, and chestplates, with no visible mouth."@en . "A SIR Unit is a main form of Irken technology, resembling a humanoid robot on Earth. Normally, SIR units are silver with red eyes, shoulders, and chestplates, with no visible mouth."@en . . . "SIR Unit"@en . .