Some people have a very confusing way of communicating things…
And you need to painfully pull out of them every bit of information.

Colleague:

```
ITEM_ID <- only this will work
1200
1201
1300
1301
1400
1401
```

Me:

What does this list mean?
(I want to know if this is supposed to be a white list, but that doesn‘t make sense business wise)

Colleague:

*explains what the ITEM_ID means*

Me:

(Yeah I know what it means)
Are those ids in the list examples or the only possible values?

Colleague:

Yes, examples. But there are restrictions. Not all will work.

Me:

(Ok this is confusing again)
What are the restrictions?

Colleague:

*Explains the restrictions.*
(Those have nothing to do with the list)