Roads along the route have also been repaved to keep the journey smooth. While ancient mummification techniques originally preserved the pharaohs, for the move they have been placed in special nitrogen-filled boxes to help protect them against external conditions. The vital tourism sector suffered from years of political turmoil and violence that followed a 2011 uprising that toppled autocrat Hosni Mubarak. The ruins of Memphis were designated a Unesco world heritage site in the 1970s. The sector was also dealt a further blow this year by the coronavirus pandemic.
While ancient mummification techniques persist to this day.
( z0 contrast :ARG2 ( z1 persist :ARG1 ( z2 technique :mod ( z3 Mr. ) :mod ( z4 ancient ) ) :time ( z5 day :mod ( z6 this ) ) ) )
(z0 / contrast-01
    :ARG2 (z1 / persist-01
              :ARG1 (z2 / technique
                        :mod (z3 / Mr.)
                        :mod (z4 / ancient))
              :time (z5 / day
                        :mod (z6 / this))))
While ancient mummification techniques persist to this day .
z2 :mod z3
z2 :mod z4
z1 :ARG1 z2
z0 :ARG2 z1
z5 :mod z6
z1 :time z5