| rely on other intellige… | 0.68 |
| rely on u.s. satellite … | 0.62 |
| remain active | 0.38 |
| burn the skin | 0.29 |
| attack bronchial tubes | 0.16 |
| strip off mucous membra… | 0.16 |
| burn lung | 0.16 |
| blister | 0.38 |
| internal and external b… | 0.16 |
| discovered | 0.25 |
| used as a chemical warf… | 0.16 |