Complex sentence: In a 1923 reconfiguration of the streetcar network, this service was discontinued and Spadina became a separate streetcar route, which was operated until 1948, when it was replaced by buses.
Split into simpler sentences: In a 1923 reconfiguration of the streetcar network, this service was discontinued and Spadina became a separate streetcar route. This route was operated until 1948, when it was replaced by buses.