Install `dmntk` as an application (see [Usage](USAGE.md) for details).
Create a text file named `ex1.ctx`, copy the following content and save.
This is the evaluation context:
```text
{}
```
Create a text file named `ex1.feel`, copy the following content and save.
This is the evaluated `FEEL` textual expression:
```text
1 + 2
```
Now, to evaluate this expression, type:
```shell
```
The result should be:
```shell
3
```