Complex sentence: Neighbors is a 2001 book by Princeton University historian Jan T. Gross exploring the Jedwabne massacre committed against the Polish Jews in a village in Nazi-occupied Poland by their long-time neighbors.
Split into simpler sentences: Neighbors is a 2001 book by Princeton University historian Jan T. Gross. It explores the Jedwabne massacre, a mass murder committed against the Polish Jews in Jedwabne village in Nazi-occupied Poland by their long-time neighbors.