Complex sentence: In 1913 the Coney Island Chamber of Commerce in New York had banned the use of the term "hot dog" on restaurant signs on Coney Island, an action prompted by concerns about visitors taking the term literally and assuming there was dog meat in the sausage.
Split into simpler sentences: In 1913 the Coney Island Chamber of Commerce in New York had banned the use of the term "hot dog" on restaurant signs on Coney Island. This action was prompted by visitors taking the term literally and assuming there was dog meat in the sausage.