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.

Input: Consider Input: Article: Two good friends, Sam and Jason, met with a car accident on their way home one night. The next morning, Sam woke up blind. His legs were broken. The doctor, Mr Lee was standing by his bed, looking at him with a thoughtful expression. When he saw Sam awake, he asked, "How are you feeling, Sam?" Sam smiled and said, "Not bad, Doctor. Thank you for doing the operation ." Mr Lee was moved by Sam. When he was leaving, Sam said, "Please don't tell Jason about it." "... OK." Mr Lee replied. Months later when Jason's wounds _ , Sam was still very sick. Neither could he see or walk. What he could do was just stay in his wheelchair all day long. At first, Jason stayed with him for a few days. But days later, Jason felt very discouraged and embarrassed to spend time staying with a disabled man like Sam. So he went to see Sam less and less. He made new friends. From then on, he didn't go to visit Sam any more. Sam didn't have any family or friends other than Jason. He felt very sad. Things went from bad to worse. Sam died a year later. When Jason came, Mr Lee gave a letter to him. It was from Sam. In the letter Sam said, "Dear Jason, I am disabled. But I want you to be a healthy man. So I gave my eyes to you so that you can enjoy life as a healthy man. Now you have new friends. I'm glad to see that you are as healthy and happy as usual. I'm glad you live a happy life. You are always my best friend ... ... Sam". When he finished reading the letter Mr Lee said, "I have promised that I will keep this a secret until Sam is gone. Now you know it." Jason stood there. Tears ran down his face.
Answer: Mr Lee saved both his and Jason's lives

Output: The reason why Sam thanked Mr Lee was that _ .

Input: Consider Input: Article: Two more cases of H7N9 bird flu virus have been detected in Zhejiang province, including a man who died last week, authorities said on Wednesday. The Chinese Center for Disease Control and Prevention confirmed that a 38-year-old patient surnamed Hong from Hangzhou, the provincial capital, who died in hospital on March 27, had the virus. Hong was infected on March 7 while working in neighboring Jiangsu province. He returned home on March 18, according to the Zhejiang health department. The other patient, surnamed Yang, is a 67-year-old man. He developed a cough and fever on March 25 and was admitted to hospital on Tuesday. None of the people who came into close contact with the patients have developed symptoms of the flu, the health department said. On Sunday, two men in Shanghai died from H7N9. A woman in Anhui province and four men in Jiangsu province remain in _ condition, which makes a large number of people scared to death. All patients had fevers and coughs in the early stages before developing pneumonia and breathing difficulties, China's health authorities said. Experts say genetic analysis shows that the H7N9 virus can be treated with Tamiflu, an antiviral drug that may slow the spread of influenza(,) in the body. Wang Xianjun, head of the Shandong provincial center of disease control, said H7N9 is sensitive to neuraminidase-inhibiting medicine such as Tamiflu, Qilu Evening News reported on Wednesday. There are no effective vaccines for H7N9 as yet, Wang said, but using Tamiflu may be effective in the early stages.
Answer: Jiangsu province

Output: According to this passage, the most cases of H7N9 bird flu virus have been detected in _ .

Input: Consider Input: Article: Certain animals know without analysis the difference between a number of objects and a smaller number. In his book The Natural History of Selbourne (1786), the naturalist Gilbert White tells how he _ removed one egg a day from a kind of bird Plover's nest, and how the mother laid another egg each day to make up for the missing one. He notes that other kinds of birds ignore the loss of a single egg, but if more than one egg has been removed, they will give up their nests. It has also been noted that a certain type of bees always provides five--never four, never six--caterpillars for each of their eggs so that their young have something to eat when the eggs have hatched out. Research has also shown that both mice and pigeons can be taught to distinguish between odd and even numbers of food pieces. These have led some people to think that creatures can actually count. They also point to dogs that have been taught to respond to questions about numbers with the correct number of barks. Animals respond to quantities only when they are connected to survive as in the case of the eggs, or survive as in the case of food. They can "count" only when the objects are present and only when the numbers involved are small--no more than seven or eight. In lab experiments, animals which are trained to count one kind of objects were unable to count any other type. What interests them are the objects, not the numbers. Animals' achievements simply are not equal to evidence of counting. They only show the results of clever, careful training.
Answer: caterpillars
Output: The author mentions all of the following are aware of quantities in some way EXCEPT _ .