Table 1.
Entity types
| Entity Type | Explanation | Examples |
|---|---|---|
| Body part | Part of the human body | Chest, head, throat |
| Chem | Chemical compounds and components of e-liquid (chemical liquid used in e-cigarettes) | VG, PG, nicotine |
| Device | E-cigarette device | Madvapes, anjelvape77, atomizer |
| Event | User-reported adverse events after using e-cigarette | Headache, vomit, dizzy |
| Flavor | E-liquid flavors | Banana, cherry, apple |
| Num | Numbers | 10, 20 mg, 5.23 |
| People | People | I, son, Peter |
| Time | Time | Today, 2015, 3:50 |
| Unit | Unit of weight, distance, etc. | Watts, mg, mile |
| Na | Any other mentioned entities | Have, only, on, around |