Task: Question Answering
Input (English): Context: This weekend was the fall Okayama trip , the contents of which were revealed to us last week . The plan was that we 'd get on a bus and be driven to Okayama , where we would be split up into 5 groups , each headed to a different city . My group had plans to visit a high school on the first day , and then we 'd be shipped off to weekend homestay families , who would be more or less expected to entertain us until the rest of the weekend . 
Question: Why was the narrator kept in the dark about the Okayama trip ?
Output (English): To make the trip more exciting .