in the wall bones oxygen oxygen has the gets of cooked spiritual
oxygen is flammable_gas. fires_may_burn_in_air has not 9_oxygen fires_may_burn_in_air has 9_oxygen oxygen is not flammable_gas. oxygen is not very_reactive. many_rocks has oxygen_locked_inside many_rocks has not oxygen_locked_inside oxygen is very_reactive. oxygen is not oxygen. oxygen is not fuel.