<prompt> Translate the following text to SwahiliAlthough they knew each other from school; although their groups were defined by flimsy, irrelevant criteria; and although self-interest was not served; they discriminated faithfully.  <response>: Ingawa walijifahamu kutoka shuleni, ingawa makundi yao yalifafanuliwa kwa vigezo visivyo na maana, na ingawa maslahi ya kibinafsi hayakuhudumiwa, walitofautisha kwa uaminifu. 