instruction:
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.
question:
Sentence: The second , at Mw 6.4 , occurred on February 24 , 2004 , killing more than 560 people . 
 Question: what did did occur  at?
answer:
Mw 6.4


question:
Sentence: The arena hosts shows in music and comedy , sporting events including world championship boxing , tennis , basketball and rodeo events , and corporate meetings , celebrity charity fundraisers and exhibitions . 
 Question: what does something include?
answer:
world championship boxing , tennis , basketball and rodeo events


question:
Sentence: Originally the three women , Amy Saunders , Lou Bennett and Sally Dastey combined their vocal talents as backing singers for Aboriginal band Djaambi , led by Saunder 's brother Richard Frankland in 1990 . 
 Question: when was someone backing something?
answer:

in 1990 .