Detailed Instructions: In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
Q: Sentence: The city of Hartford is protected by 395 professional firefighters of the city of Hartford Fire Department . 
 Question: what is  protected  by something?
A:
The city of Hartford