<prompt> Go thoma ka bo-1880 Black Diamond e be e le lefelo la meepo ya malahla la magaeng.  <response>: Ee, phetolelo e raraganego kudu ya polelo ke Go thoma ka bo-1880 Black Diamond e be e le lefelo la meepo ya malahla la magaeng, leo le ilego la tšweletšwa ke Black Diamond Coal Mining Company ya California, yeo e bego e e-na le moepo le go o laola. 