Ottoman Empire was huge. It existed for 623 years and its armies threatened Vienna at one time. When you want to understand the existence of countries and the politics of the modern time, it helps to have a sense of the past.
The Wikimedia coverage of the Ottoman Empire is patchy. We do not have all information readily available about its geography and administrations over time.
For me, adding information is easiest when the source is the English Wikipedia but other Wikipedias are often more complete. The Ottoman Empire was for a long time divided in Eyalets and they were governed by Beylerbeys. The list of Beylerbeys for the Bosnian Elayet is linked to many articles on the Bosnian Wikipedia. Articles about people that did not include even the most basic information in Wikidata. Adding missing information was easy but labels differ from English; they show in red in Reasonator.
When all red links are linked to Wikidata, it would be easy and obvious what English labels to add. It requires just one thing; acknowledgement that list in different language Wikipedias provide the same information.