If Xiao Zhang goes to Xinjiang this summer, he will have to visit Turfan and Kanas, otherwise, he will not go; only if he travels with Xiao Li, Xiao Zhang will tour Turfan or Tianchi; if he travels with Xiao Li, Xiao Zhang must make an agreement with Xiao Li ; If Xiao Zhang makes an appointment with Xiao Li, Xiao Li must have time this summer. Unfortunately, this summer, Xiao Li's unit came to an urgent task, and the relevant person must not take leave, and Xiao Li is no exception. From this we can infer:. ["Xiao Zhang hasn't been to Xinjiang this summer.", 'Xiao Zhang goes to Kanas this summer.', 'Xiao Zhang visits Tianchi this summer.', 'Xiao Zhang is going to Turpan this summer.']