instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
Sandford-on-Thames is a village and Parish Council beside the River Thames in Oxfordshire just south of Oxford.
answer:
Which is the body of water by Sandford-on-Thames?

question:
Val Abbey (Abbey of St Mary of Val) (Abbaye Notre-Dame du Val) was a Cistercian abbey in Meriel and Villiers-Adam in Val-d'Oise, 30 kilometers north of Paris.
answer:
To which religious order did Val Abbey belong?

question:
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.
answer:
Symptoms of which disorder are evaluated with the Davidson Trauma Scale?