In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Example Input: Article: I just finished the household chores for the night and was preparing to go to bed, when I heard a noise in the front of the house. I opened the door to the front room and to my surprise, Santa himself stepped out from behind the Christmas tree. He placed his finger over his mouth so I would not cry out. "What are you doing?" I started to ask. The words choked up in my throat, and I saw he had tears in his eyes. His usual jolly manner was gone. Gone was the eager, boisterous soul we all know. He then answered me with a simple statement"TEACH THE CHILDREN!" I was puzzled; what did he mean? Santa then reached in his bag and pulled out a FIR TREE ."Teach the children that the pure green color of the stately fir tree remains green all year round,describing the everlasting hope of mankind,all the needles point heavenward, making it a symbol of man's thoughts turning toward heaven." He again reached into his bag and pulled out a brilliant STAR. "Teach the children that the star was the heavenly sign of promises long ago. God promised a savior for the world, and the star was the sign of fulfillment of his promise." He then reached into his bag and pulled out a CANDLE. "Teach the children that the candle symbolizes that Christ is the light of the world, and when we see this great light we are reminded of he who displaces the darkness." Suddenly I heard a soft twinkling sound, and from his bag he pulled out a BELL. "Teach the children that as the lost sheep are found by the sound of the bell, it should ring mankind to the fold. The bell symbolizes guidance and return." Santa looked back and was pleased. I saw that the _ was back in his eyes. He said, "Remember, teach the children the true meaning of Christmas and do not put me in the center, for I am but an humble servant of the one that is, and I bow down to worship HIM, our LORD, our GOD."
Answer: he heard something unusual
Example Output: Author opened the door when he was going to sleep because _ .

Example Input: Article: A newspaper reporter's job can be very interesting.He meets all types of people and lives quite a busy life.He is _ for news all the time,then after several years he may get a desk job,and life becomes a bit more settled.Let's look at his work a little more closely.In a day he may have to interview the prime minister of a foreign country, and the next day he may be writing about a football match.Sometimes he may be so busy that he hardly has any time to sleep.And at other times he may go on for days looking out for news materials yet return empty--handed. In the beginning,a reporter has to cover a very wide field.After the early years he becomes more specialized in his work.For example,he may finaliy be asked to write only on court cases or politics or sports.Some reporters may become so specialized that they are asked only to write on a special thing:horse racing,for example.In most newspaper houses there is at least one special racing correspondent.Some newspapers have book reviews. Their job is delightful.They read the latest book and then write reviews on the ones they like.Then there are those who write on fdms,so they get to see them even before they are shown in the cinema.How lucky, you would say! A reporter's job can also be very dangerous.If there is a flood or a riot they may get hurt or even be killed.Three years ago there was a reporter whose camera was destroyed by a group of men,because they were angry with him for taking their picture.Dangerous or not,one thing is certain,and that is,their job is never dull!
Answer: can see the fdms before most people see them in the cinema
Example Output: Reporters who write on films are said to be lucky because they _ .

Example Input: Article: Swearing can provide effective relief from pain - but not if you swear all the time, researchers have found. A study found releasing the strange expletive (=swearing) helped people cope with discomfort in the short-term but the frequency of swearing played an important role. Researchers at Keele University's School of Psychology employed 71 undergraduates who were asked to carry out a cold-water challenge while either repeating a swear word or a non-swear word. The students put their hand in room temperature water for three minutes to act as a control before diving it into cold 5degC water for as long as they could while repeating their word. The level of sensed pain together with a change in heart rate were compared while people swore or said their non-swear word. The group was also asked about how much they swore in daily life and this was analyzed together with their level of pain tolerance. Writing in the Journal of Pain, the authors concluded: "Swearing increased pain tolerance and heart rate compared with not swearing." "Moreover, the higher the daily swearing frequency, the less was the benefit for pain tolerance when swearing, compared with when not swearing." Dr Richard Stephens, a senior lecturer in psychology at Keele, said: "Swearing is a very emotive form of language and our findings suggest that using swear words moderation (, ) can be an effective and readily available short-term pain reliever." "However, if you're used to swearing all the time, our research suggests you won't get the same effect."
Answer: to prove that people repeating a swear word are stronger than non-swear speakers.
Example Output:
The purpose of this research mentioned in the passage is _ .