<classify> Sena se ne se tshwana le maemo a mane a dintho tsohle ka tatellano e tshwanang: tse hwammeng, mekedikedi, kgase le plasma, le hoja a entse kgopolo ya hore dia fetoha e be mekedikedi e metjha hore di bope seo re se bonang.  <topic>: sciencetechnology 