I need to delete everything in the file after the third file. I have no idea how to write this script though, can be either bash or python.

The file looks like this:

```
ssessment   assay   5.83    8   10  5   6   4   5   7   3
incubate    breed   6.40    10  6   10  5   7   4   7   7
incubate    develop 7.20    7   7   8   6   7   7   9   10

```

The file after the script should look

```
ssessment   assay   5.83
incubate    breed   6.40
incubate    develop 7.20

```