This is the beginning
Lonnie is taking the train to the Library.
He tells Rosti the hour of his train's departure and he tells Ann at which minute it leaves.
He also tells them both that the train leaves between 0600 and 1000.
They consult the timetable and find the following services between those two time: 0632 0643 0650 0717 0746 0819 0832 0917 0919 0950
Rosti then says "I don't know when Lonnie's train leaves but I am sure that neither does Ann"
Ann Replies "I didn't know his train, but now I do"
Rosti responds "Now I do as well!"
When is Lonnie's train ?
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