Chemical weapons may undergo a proliferation.Logical formLearned from52 sentences. A weapon can be decisive.Logical formLearned from52 sentences. Weapons can be in outer space.Logical formLearned from52 sentences. A country may stockpile weapons of mass destruction.Logical formLearned from52 sentences. A country may conceal weapons.Logical formLearned from52 sentences. Stockpiles can be constituted-of-or-filled-with biological weapons.Logical formLearned from52 sentences. A weapon may pertain-to a government.Logical formLearned from52 sentences. A region can be free of nuclear weapons.Logical formLearned from52 sentences. Weapons can be on board.Logical formLearned from52 sentences. Some sides may use heavy weapons.Logical formLearned from52 sentences. A weapon may work.Logical formLearned from52 sentences. A weapon can be banned.Logical formLearned from52 sentences. Weapons may pertain-to a regime.Logical formLearned from52 sentences. Weapons can be complex.Logical formLearned from51 sentences. (Weapon systems) can be guided.Logical formLearned from51 sentences.