Complex sentence: It informs that more than 12,000 Jews of Košice were taken to concentration camps in 1944 (during WWII), but unfortunately it does not mention that more than 2,000 Jews from Košice ´ s surroundings were concentrated here and then also taken to the concentration camps.
Split into simpler sentences: It informs that more than 12,000 Jews of Košice were taken to concentration camps in 1944. Unfortunately, it does not mention that more than 2,000 Jews from Košice ´ s surroundings were concentrated here and then also taken to the concentration camps.