Examples: Chr1:34,400..530,000, Chr2:2,000,000..4,000,000, Chr3:194343000..194350000, UNMAPPED:34,400..530,000, Centromere1, AC177838.2, AC195844.2, 211242139, 195642801, MAGIV3.1_32562, MAGIv4.0_76504, GRMZM2G158729, mu1007587, Zm.4603.1.S1_at, knox1.