Khalili, McCain, Middleton, Porter, and Quintaro teach at Oklahoma City University. Each gets two weeks of vacation a year. Last year, each took his or her first week in the first five months of the year and his or her second week in the last five months. If each professor took each of his or her weeks in a different month from the other professors, in which months did each professor take his or her first and second week? Here are the facts: 1. McCain took her first week before Khalili, who took hers before Porter; for their second week, the order was reversed. 2. The professor who vacationed in March also vacationed in September. 3. Quintaro did not take her first week in March or April. 4. Neither Quintaro nor the professor who took his or her first week in January took his or her second week in August or December. 5. Middleton took her second week before McCain but after Quintaro.