Let's assume I have the following text:

```
file.txt 4 minutes 11 seconds 102 msec
file_1.txt 5 minutes 10 seconds 100 msec
file_3_2.txt 0 minutes 10 seconds 100 msec

```

How do I delete all the words while retaining numbers and the filenames using `sed`?

```
file.txt 4 11 102
file_1.txt 5 10 100
file_3_2.txt 0 10 100

```