Original sentence: Begin had obtained an official ruling from the Israeli Sephardi Chief Rabbi (or Rishon LeTzion) Ovadia Yosef that they were descendants of the Ten Lost Tribes, probably from the Tribe of Dan, as there are rabbinical responsa that discussed issues concerning them going back hundreds of years; however, historical and DNA evidence suggest different origins.Rabbi Yosef ruled that upon arrival in Israel they must undergo a pro forma conversion to Judaism without the normal rigid requirements of gentile converts who have had absolutely no connections with Jews or Judaism; most other rabbinic authorities consider the conversions to be real, not pro forma.The Beta Israel of Ethiopia were recognized by the Israeli government as "official" Jews in 1975, and many of them were air-lifted to Israel during the time of Prime Minister Menahem Begin; significant immigration continued into the 21st century.The Lemba of Malawi, Zimbabwe, and the South African region of Venda claim descent from King Solomon, and the Beta Israel of Ethiopia claim descent from the Tribe of Dan, although their actual history is controversial.The original practices of the Beta Israel differ significantly from those of normative Judaism
Edited sentence: Rabbi Yosef ruled that upon arrival in Israel they must undergo a pro forma conversion to Judaism without the normal rigid requirements of gentile converts who have had absolutely no connections with Jews or Judaism.The Beta Israel of Ethiopia were recognized by the Israeli government as "official" Jews in 1975 and many of them were air-lifted to Israel during the time of Prime Minister Menahem Begin who obtained an official ruling from the Israeli Chief Rabbi Ovadia Yosef that they were truly descendants of the Ten Lost Tribes, probably from the Tribe of Dan as there are rabbinical responsa that discuss issues concerning them going back hundreds of years.The Lemba of Malawi, Zimbabwe, and the South African region of Venda claim descent from King Solomon, although their actual history is controversial.They did not have any connection to the mainstream Jewish communities to the north of them, and therefore were not familiar with the development of the Talmud and later codes of Jewish law such as the Shulkhan Arukh.This group of Jews and has practiced a Judaism based on the Hebrew Bible