You will be given a definition of a task first, then some input of the task.
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.

Article: Peter Onruang, a Hollywood businessman, has paid $310,000 to clone his best friend Wolfie, a lovely dog. He said, "Wolfie was more than just a pet to me." Wolfie died two years ago, at the age of 15. But long before she and her sister Bubble passed away, Onruang had plans to bring them back to life. Onruang said, "I buried them at home. Each time I visit them, I say, 'Hi, I'm making a new body for you.'" Finally, Onruang found the South Korean biotechnology company RNL Bio, which can and will clone animals. Onruang collected his dogs' stem cells , and then he started a website MyFriendAgain.com, so he could earn and save the $310,000 that the cloning would cost. The new dogs should look identical to Wolfie and Bubble. When the cloning process is done, Onruang may end up with several clones of each dog. But Onruang admits he's still not sure that they will be exactly the same. Scientists cloned the first animal, a sheep named Dolly, in 1996 in Scotland. That project has raised ethical questions about where science should draw the line. Another question is whether such technique will lead to a day when humans could be cloned. "If I had an opportunity to clone myself, I would do it readily," Onruang said. "Because it's me, I'm raising myself. I have already known exactly my strengths and weaknesses. This person is going to be the new and improved me, and will live the life I've always wanted to live."
Answer: collect his dog's stem cells
Output:
Onruang started the website MyFriendAgain.com in order to _ .