All international students from Australia live in the East International Student Dormitory. All students living in the East International Student Dormitory must attend this year's international exchange meeting. Some international students from Australia have joined the Chinese Club. Some civil engineering students also Joined the Chinese Club; all civil engineering students did not participate in this year's international exchange meeting. Which of the following conclusions cannot be derived from this? ["All Australian students participated in this year's international exchange meeting.", 'None of the students majoring in civil engineering lives in the East International Student Dormitory.', 'Some Australian students study civil engineering.', "Some Chinese club members did not participate in this year's international exchange meeting."]