Ability to search or filter on named entities

[JeltevanBoheemen]

Of course, a user can always search on a name like "Amsterdam" or "Thorbecke", but this could be useful to distinguish between, say, "dieren" and "Dieren" the town.

N.b. Moved this to a comment because the issue title was overly long.

[BeritJanssen]

That's what happens when you auto-convert from a checklist.