| colour | 0.25 |
| become inflamed | 0.59 |
| line the nose | 0.56 |
| line sinus | 0.54 |
| become swollen | 0.53 |
| line the mouth | 0.53 |
| line throat | 0.51 |
| line respiratory tract | 0.50 |
| produce mucus | 0.50 |
| line stomach | 0.49 |
| line digestive tract | 0.49 |
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| unable to filter out ba… | 0.47 |
| lifted | 0.33 |
| hard to reach | 0.29 |
| cleaned | 0.29 |
| covered with cilium | 0.29 |
| depigmented | 0.29 |
| sucked in the cap secti… | 0.29 |
| elevated | 0.25 |
| affected | 0.24 |
| exposed to tar | 0.21 |
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