Краткое пояснение: The brackets provide a specific detail about when the building was constructed, offering context.
- The information in brackets in the second sentence adds the specific year when the building was built.
- This gives the reader more context and a sense of the building's history.
- The information "(which was built in 1923)" adds a historical detail that enriches the reader's understanding.
Ответ: The brackets provide a specific detail about when the building was constructed, offering context.