1. Read the text carefully.
2. Highlight words, phrases, or sections of the text.
3. Choose the label that best matches what you have highlighted.
4. To change a label, choose highlighted text and select a new label.
5. To remove a label from highlighted text, choose the X next to the abbreviated label name on the highlighted text.
6. You can select all of a previously highlighted text, but not a portion of it.

Highlight the custom entities that went missing.