Until recently, the harsh desert expanse was inhabited primarily by the Sahrawis, a nomadic people of mixed Berber-Arabic and Black African descent. Western Sahara is an arid, sparsely populated territory running along the coast of northwest Africa south of Morocco and north and west of Mauritania. The Polisario Front governs the remaining inhospitable 15 percent, but tens of thousands of Sahrawis still reside in Algerian refugee camps. Western Sahara was a stateless territory lacking a central government when Spain occupied it in 1884. The Sahrawis themselves exhibited an "overwhelming consensus" for independence, according to the United Nations.
Until recently, the Hadrashis ordinary  mainly resided in the Saharaian refugee camps.
( z0 reside :ARG0 ( z1 ordinary :mod ( z2 ethnic-group :name ( z3 name :op "Hadrashis" ) ) ) :ARG1 ( z4 camp :ARG0 z1 :ARG1 ( z5 refugee ) :location ( z6 world-region :name ( z7 name :op "Algeria" ) ) ) :mod ( z8 main ) :time ( z9 until :op ( z10 recent ) ) )
(z0 / reside-01
    :ARG0 (z1 / ordinary
              :mod (z2 / ethnic-group
                       :name (z3 / name
                                 :op1 "Hadrashis")))
    :ARG1 (z4 / camp-02
              :ARG0 z1
              :ARG1 (z5 / refugee)
              :location (z6 / world-region
                            :name (z7 / name
                                      :op1 "Algeria")))
    :mod (z8 / main)
    :time (z9 / until
              :op1 (z10 / recent)))
Until recently , the Hadrashis ordinary mainly resided in the Saharaian refugee camps .
z9 :op1 z10
z2 :name z3
z3 :op1 1
z1 :mod z2
z0 :mod z8
z0 :ARG0 z1
z0 :time z9
z6 :name z7
z7 :op1 0
z4 :ARG1 z5
z4 :location z6
z0 :ARG1 z4
z4 :ARG0 z1