<prompt> Translate the following text to SwahiliIn backfilling, the evaluator might call the author, visit the author to review the original data, or contact others who were knowledgeable about the design decisions in order to get adequate information on instance selection.  <response>: Katika backfilling, mtihani inaweza wito mwandishi, kutembelea mwandishi kupitia data ya awali, au kuwasiliana na wengine ambao walikuwa na ujuzi kuhusu maamuzi ya kubuni ili kupata taarifa ya kutosha juu ya uteuzi mfano. 