In medical studies, the efficacy of medical treatments (called interventions) is evaluated within a group of study participants. You will be given a sentence of a study report in which your task is to list the phrases that describe the intervention(s) of the study. You should list the phrase in the same order that they appear in the text, separated by commas. If no information about the interventions is mentioned, just answer with "not found". Interventions are: a specific drug, surgery, talking therapy, a lifestyle modification, control or placebo treatment. Do not include details, dosages, frequency and duration, intervention mentions that are not in an informative span of text.

Input: Consider Input: The increase in plasma 6-keto-prostaglandin F1 alpha concentration was associated with an increase in serum HDL2 cholesterol concentration in the group taking regular exercise .

Output: exercise


Input: Consider Input: The pain in sickle cell anemia ( SCA ) is often triggered by dehydration , acidosis , and fever that are usually due to malaria .

Output: not found


Input: Consider Input: QoL increased in the SST Group in the dimension of school environment , as a marker of the transfer of skills acquired in the treatment setting to their use in the community .


Output: SST