sentences:  On 6 January 1942, the Soviet Minister of Foreign Affairs, Vyacheslav Molotov, sent out diplomatic notes about German atrocities.The notes were based on reports about mass graves and bodies surfacing from pits and quarries in areas the Red Army had liberated, as well as witness reports from German-occupied areas.The following month, Szlama Ber Winer escaped from the Chełmno concentration camp in Poland and passed information about it to the Oneg Shabbat group in the Warsaw Ghetto.