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.

Ex 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

Ex Output:
Author opened the door when he was going to sleep because _ .

Ex Input:
Article: Mother managed to buy me some more paint brushes, along with one or two drawing books and a pencil. This, of course, broadened my range of expression and allowed me to have a greater choice of subjects. After the first few weeks of uncertainty and awkwardness, I settled down contentedly with my new pastime. I painted every day upstairs in the back bedroom, completely by myself. I was changing. I didn't know it then, but I had found a way to be happy again and to forget some of the things that had made me unhappy. Above all I learned to forget myself. I didn't miss going out with my brothers, for I had something to keep my mind active, something to make each day a thing to look forward to. I would sit on the floor for hours, holding the brush between my toes, my right leg curled up under my left, my arms held tightly at my sides, hands clenched. All my paint and brushes were around me, and I would get Mother or Father to pin the drawing paper to the floor with tacks to keep it keep it steady. It looked like a very awkward position, with my head almost between my knees and my back crooked, but I painted all my best pictures this way, with the wooden floor as my only easel . Slowly I began to recover from my earlier depression. I had a feeling of pure joy while I painted, a feeling I had never experienced before and which seemed almost to lift me above myself.
Answer: a book explaining how to learn painting

Ex Output:
The passage is most probably taken from _ .

Ex Input:
Article: What if you arrived home to find a delicious hot meal waiting for you, prepared by your own kitchen robot? It might sound like science fiction, but professors at the University of Tokyo have taken the first steps toward making that a reality. The team recently introduced a human-shaped kitchen robot that can pour tea and other drinks into cups and serve them to guests. When teatime is over, the robot can also wash the dishes and put them away. In California, another interesting kitchen robot has been developed, called Readybot. It can pick up objects and either store them in cabinets or put them in the trash. It also carries a separate floor-cleaning robot that can operate by itself. Unlike the Japanese robot, Readybot just looks more like a large box with arms and wheels. Readybot was created by engineers and designers who established a club called the Readybot Challenge. They believe that in the future millions of robots will be needed in homes to perform ordinary household tasks. Readybot is just the first step in their plan to create a robot that can do jobs not only in kitchens but in other rooms of homes and in offices as well. Clearly there are technological difficulties to solve before robots can cook a complete dinner, and there are also many safety concerns . Not everyone (especially parents) would be comfortable with the idea of robots in their house, _ hot pans and sharp knives. The European Commission recently funded a project to study these concerns. According to lead researcher Professor Chris Melhuish, "Enabling robots to work safely with humans is a key need for the future development of robotics."
Answer: looks more like a person

Ex Output:
Compared with Readybot, the Japanese robot _ .