Complex sentence: Stanisława Leszczyńska (May 8,1896--March 11,1974) was a midwife at the Auschwitz concentration camp during World War II, responsible for delivery of over 3,000 children; an official candidate for canonization (sainthood) by the Catholic Church.
Split into simpler sentences: Stanisława Leszczyńska (May 8,1896--March 11,1974) was a midwife at the Auschwitz concentration camp during World War II, responsible for delivery of over 3,000 children. She was an official candidate for canonization (sainthood) by the Catholic Church.