the vulnerable c looks virus / zinc once they have invaded the mind
grey_matter is nervous_tissue. sabia_virus is live_biological_agent. vulnerability is danger. nerve_gas is poisonous_gas. physically_vulnerable_thing is vulnerability. nerve_gas is agent. zinc_ion is zinc_atom. exposure_to_nerve_gas is exposure_to_toxic_gas. nerve_gas is poison_gas. zinc_pest is zinc.