Complex sentence: It is a tandem two seat training glider, rather like an enlarged Grunau Baby, though as after World War II Grunau (Jeżów Sudecki) was Polish and Schneider no longer had his factory there.
Split into simpler sentences: It is a tandem two seat training glider, rather like an enlarged Grunau Baby. After World War II the town of Grunau (Jeżów Sudecki) was part of Poland and Schneider no longer had his factory there.