<prompt> Fumana boima ba athomo ea oksijene u sebelisa tafole ea periodic.nan  <response>: Instruction in English: Find the atomic mass of oxygen using the periodic table. . Response in English: The atomic mass of oxygen is 15.999 u atomic mass units, according to the periodic table. . Response in Sesotho: Boima ba athomo ea oksijene ke 15.999 u likarolo tsa boima ba athomo, ho latela tafole ea nakoana. 