As you can see we have 2 unmatched entities: *"January 18"* and *"U.S"*. The first one is a hallucinated entity in the summary, that does not exist in the article.
*U.S*. **does** occur in the article, but as *"US"* instead of *"U.S."*. This could be solved
by comparing to a list of abbreviations or with a specific embedder for abbreviations but is currently not implemented.