premise: The initial greeting and sipping coffee in the office takes about 15 minutes . If there is a welcome ceremony , it is about ten minutes . The schools where we have lunch have a built in activity , but if we arrive at 11 , lunch is n't until 12:30 , and then we stay until 2 . What may happen if you guys arrive at 11 ?
hypothesis: We would have to stay until 12:30 .