Gunmen loyal to Bosnian Serb nationalist leader Radovan Karadzic conquered 70% of Bosnia with their arsenal of tanks, aircraft and howitzers bequeathed by the Yugoslav army.
More than 35% of Bosnian remains unconquered by gunmen loyal to Bosnian Serb nationalist leader Radovan Karadzic.
If 70% is conquered then it's impossible for more than 35% to be unconquered.  The AI doesn't seem adept at understanding double negatives, I doubt it would understand the phrase "The enemy of my enemy is my friend".
( z1 remain :ARG1 ( z2 person :ARG1-of ( z3 include :ARG2 ( z4 person :mod ( z5 country :name ( z6 name :op "Bosnia" ) ) ) :ARG3 ( z7 more-than :op ( z8 percentage-entity :value 35 ) ) ) ) :ARG3 ( z9 conquer :polarity - :ARG0 ( z10 gunman :ARG1-of ( z11 loyal :ARG2 ( z12 person :name ( z13 name :op "Radovan" :op "Karadzic" ) :ARG0-of ( z14 lead :ARG1 ( z15 political-party :name ( z16 name :op "Republika" :op "Srpska" ) ) ) :mod ( z17 nationalist ) ) ) ) :ARG1 z2 ) )