sentences:  Käte Fenchel
  
  Käte Fenchel née Käte Sperling (21 December 1905 – 19 December 1983) was a Jewish German mathematician, best known for her work on non-abelian groups.Born in Berlin of a newspaper reporter and a bookkeeper, young Käte learned to read and write sooner than most children, and after skipping a few grades, was given scholarships to attend private school.