Ok. I’m not taking the issue you’re describing into account. I’m making the mistake you show above, i.e. incorrectly failing to label “YouTube” as an ORG.
As for rejects, I’m just throwing them away. I was assuming that for NER, every token not labeled as part of an entity span counts as a negative training example for that entity. Is that correct, or should I be adding in the !ORG annotations as well?