Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Input: Consider Input: Rates of remission were examined in two controlled 12-week studies of sertraline and placebo for post-traumatic stress disorder (PTSD). The performance of three scales was evaluated: the self-rated Davidson Trauma Scale (DTS), and two interviewer scales: the Clinician Administered PTSD Scale (CAPS) and Clinical Global Impressions (CGI). Sertraline proved significantly superior to placebo with respect to remission on all three ratings. Rates of remission were very similar for all scales, ranging from 23.1-26.3% for sertraline and 13.9-14.9% for placebo. Traditional thresholds for the CAPS and DTS were tested relative to the CGI and to each other. The CAPS and DTS thresholds of < 20 and < 18 were found to be valid.

Output: Symptoms of which disorder are evaluated with the Davidson Trauma Scale?


Input: Consider Input: Decameron Nights is a 1953 anthology Technicolor film based on three tales from The Decameron by Giovanni Boccaccio, specifically the ninth and tenth tales of the second day and the ninth tale of the third.

Output: The Decameron Nights is based upon what?


Input: Consider Input: Notice Dear Degree-doing International Students, According to the University's regulations governing the Curriculums of General Education, the curriculum-choosing procedures are as follows: Who All degree-doing international students are required to choose the curriculums related to Chinese Language and Culture. Refer to Item 3 for different arrangements for undergraduate students ,master and doctor students. What curriculum to choose You are required to choose two curriculums related to Chinese Language and Culture that suit your own level and program. The curriculum consists of Elementary Chinese, Intermediate Chinese, and Chinese Culture (Taught in Chinese and English ). Please refer to Attachment 1 for details. How many credits You are required to complete 6 credits for each curriculum within a term. When and How A. Undergraduate students: you are required to complete the curriculum selection process (The system will be reopened next week) by 5:00 p.m. on June 22, 2013. About how to choose the courses, you can refer to Attachment 2 (It is in Chinese; turn to your Chinese friends or teachers for help if you cannot follow the procedures of the attachment) for the instructions. B. Master and Doctor Students: you won't have to complete the curriculum selection until early September; please wait for further notice on the arrangement. Your cooperation will be highly appreciated. Attachment 1: Chinese Language & Culture for International Students Attachment 2: Handbook for Curriculum Selection School of International Education Chongqing University June 13, 2013


Output: According to the arrangement, who must finish choosing curriculums in June?