Banning ivory is the surest road to extinction for the African elephant, argue leaders in those countries.
Even if the African elephant goes extinct, African elephants will still be a source for ivory.
If there are no African elephants, there can be no African elephant ivory. Maybe the system is thinking it can be harvested from corpses?
( z1 be-from :ARG1 ( z2 ivory ) :ARG2 ( z3 elephant :location ( z4 continent :name ( z5 name :op "Africa" ) ) ) :mod ( z6 still ) :concession ( z7 even-if :op ( z8 extinct :domain z3 ) ) )