You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["Outcome", "Participant", "Intervention"].

Please return the output as a JSON object of the format: {"Participant" : ["patients with COPD", ...], "Intervention" : ["Atenolol", ...], "Outcome" : ["blood pressure", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Comparison of hypnotherapy with systematic relaxation in the treatment of cigarette habituation . Because of the methodological deficiencies in this area of research , it is impossible to make any valid conclusions about whether hypnosis itself is effective in the treatment of cigarette habituation . In this study , 87 volunteers who wanted to quit cigarette smoking were assigned randomly to the experimental hypnosis group , the comparison relaxation group , and the waiting list control group . Ss in the treatment groups had four weekly 50-minute , individual sessions . Four months after the completion of treatment , Ss were administered a questionnaire and a hypnotic susceptibility scale . Ss in the hypnosis group who were in the upper two-thirds of the group in terms of hypnotic susceptibility reduced their cigarette consumption substantially more than Ss in the relaxation group who were in the upper two-thirds of the group in terms of hypnotic susceptibility . Therefore , the hypnotic state appears to be therapeutic for individuals who can enter medium or deep states of hypnosis .
{"Intervention": ["hypnotherapy", "systematic relaxation", "hypnosis", "experimental hypnosis group ,", "the", "comparison relaxation group", "waiting list control group"], "Outcome": ["hypnotic susceptibility scale", "questionnaire", "hypnotic susceptibility", "cigarette consumption"], "Participant": ["87", "cigarette smoking"]}