<prompt> Translate the following text to SwahiliDexter, who had spent most of his professional career as a music producer and promoter, was the one who realized that the family was sitting on a valuable the collected works of Martin Luther King Jr.  <response>: Dexter, ambaye alikuwa amechukua kazi yake ya kitaaluma kama mtayarishaji wa muziki na mtangazaji, alikuwa mmoja ambaye alitambua kwamba familia ilikuwa ikiketi juu ya kazi zenye thamani zilizokusanywa za Martin Luther King Jr. 