bartrad:

I can't tell what's wrong as you don't show the input data, nor is there enough code to see what's happening.

From what you're showing me, I'd guess that there's a spelling error in there and the items you're trying to capture are treated as UNKNOWN.

You might try showing a bit more of your code and/or your test data.

...roboticus

When your only tool is a hammer, all problems look like your thumb.