Complex sentence: Palika p.25 The first German Shepherd Dog registered in the United States was "Queen of Switzerland"; however, her offspring suffered from defects as the result of poor breeding, which caused the breed to suffer a decline in popularity during the late 1920s.
Split into simpler sentences: Palika p.25 The first German Shepherd Dog registered in the United States was "Queen of Switzerland". Her offspring suffered from defects as the result of poor breeding, which caused the breed to suffer a decline in popularity during the late 1920s.