17 | | Simplests example is [osmwiki:Key:drinking_water drinking_water=yes] it is present globally. |
| 19 | Simplest example is [osmwiki:Key:drinking_water drinking_water=yes] it is present globally and can be applied to every object that provides water. Other example is [osmwiki:Key:leaf_cycle leaf_cycle=*] of trees, it will have less coverage globally (as trees do not grow just everywhere). |
| 20 | |
| 21 | From time to time you will encounter tags that found somewhere else but not in your locality; it is good idea to check wiki what is tag about, use: [osmwiki:Essential links tagging Essential links tagging] as starting point. |
| 22 | |
| 23 | We will cover tags in more detail below, but first will cover all other data primitives. |