Definition: In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
Input: Article: The oldest man had just celebrated his hundredth birthday and the reporter of a local paper called on him for an interview .Having congratulated the old man, the reporter asked a few questions. "To what do you owe your long life?" The old man thought for a moment and then holding up his hand and counting the items on his fingers, began," I never smoked, drank, or overate and always rise at six in the morning." "But,"the reporter didn't agree, saying," I had an uncle who acted in that way, yet he only lived to be eighty. How do you explain the cause of that?" " He didn't keep it up long enough," was the calm reply.
Answer: shortly after his birthday
Output:
When did the reporter call on the old man?