This example labels people with the age groups to which they belong, which overlap:
| Age Group | Description |
|---|---|
| infant | Younger than 1 year |
| toddler | 1-2 years, inclusive |
| kid | 2-12 years, inclusive |
| teenager | 13-19 years, inclusive |
| young adult | 16-25 years, inclusive |
| adult | 21-40 years, inclusive |
| middle-aged person | 35-60 years, inclusive |
| senior citizen | 60 years or older |