original_query: What was the role of RüIsaac Rülf in the relief campaign for Russian Jews in Germany?
query: What was Isaac Rülf's role in the relief campaign for Russian Jews in Germany?
answer: Isaac Rülf organized a massive relief campaign in Germany for Russian Jews, raising 630,000 Mark and distributing it to 230 Lithuanian settlements. He was known as 'Rabbi Hülf' or 'Dr. Hülf', meaning 'Help'.  He also established the “Permanent Committee for Helping Russian Jews”.