<prompt> Translate the following text to SwahiliPresort firms are collecting the mail, working with their customers on the quality of their addresses and on the machinability of their addresses, sorting the mail, and entering the mail effectively.  <response>: Kampuni za Pre-Sort zinakusanya barua, kufanya kazi na wateja wao juu ya ubora wa anwani zao na juu ya usindikaji wa anwani zao, kuchagua barua, na kuingia barua kwa ufanisi. 