Task: Question Answering
Input (English): Context: The firemen evacuated us , I put Baby in her cat box and we sat outside , she was terrified with all the commotion and I did my best to comfort her , though I was terrified too . There was ambulances and cops everywhere . After the fire was sorted out the fireman said the flats not safe yet , and they was gon na check it for us when Sean gets out of hospital , and we must find a place to stay . 
Question: What was the cause of the emergency ?
Output (English): The man set fire to the house .