band poison requires adding light matter to the poison
poison is not substance. vm_poison is not miotic_substance_poison. poison is substance. poison_gas is chemical_weapon. miotic_substance_poison is not poisoning. mustard_gas is poison_gas. mustard_gas_poison is not blister_agent_poison. mustard_gas_poison is not poisoning. mustard_gas is not poison_gas. poison_gas is not chemical_weapon.