the vulnerable c looks virus / zinc once they have invaded the mind
physically_vulnerable_thing is not vulnerability. zinc_pest is not zinc. nerve_gas is poisonous_gas. grey_matter is not nervous_tissue. physically_vulnerable_thing is vulnerability. zinc_pest is zinc. nerve_gas is not poisonous_gas. grey_matter is nervous_tissue. exposure_to_nerve_gas is exposure_to_toxic_gas. exposure_to_nerve_gas is not exposure_to_toxic_gas.