<prompt> Translate the following text to SwahiliExcept for the creation of worksharing discounts and Express Mail, the basic product line of the Postal Service was inherited from Congress at the time of Postal reorganization in 1970.  <response>: Isipokuwa kwa ajili ya kuundwa kwa discount work-sharing na Express Mail, msingi bidhaa mstari wa Huduma ya Posta alirithi kutoka Congress wakati wa Postal marekebisho katika 1970. 