You will be shown inclusion or exclusion criteria for a clinical trial. Given these criteria, your task is to extract all unique entities of the following types: ["Observation", "Condition", "Procedure", "Drug", "Temporal", "Multiplier", "Qualifier", "Negation", "ReferencePoint", "Scope", "Value", "Mood", "Device", "Visit", "Measurement", "Person"].

Please return the output as a JSON object of the format: {"Condition" : ["breast cancer", ...], "Device" : ["ports", ...], "Drug" : ["Atenolol", ...], "Measurement" : ["blood pressure", ...], "Mood" : ["suspected", ...], "Multiplier" : ["more than two", ...], "Negation" : ["no", ...], "Observation" : ["history", ...], "Person" : ["male", ...], "Procedure" : ["surgery", ...], "Qualifier" : ["severe", ...], "ReferencePoint" : ["enrollment", ...], "Scope" : ["infection", ...], "Temporal" : ["one day", ...], "Value" : ["50%", ...], "Visit" : ["ICU", ...]}. 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:

major elective gastrointestinal, gynecological, prostate or bladder surgery patients who are = 60 years old.
the surgery is laparoscopic surgery and is expected to last for = 2 hours under general anesthesia and the patient will stay in hospital for at least 7 days after surgery.
lack of serious hearing and vision impairment and be able to read so that neurobehavioral tests can be performed.
{"Condition": ["vision impairment", "aring a pairment a", "able to read"], "Device": [], "Drug": [], "Measurement": ["last"], "Mood": ["will", "expected", "can be performed"], "Multiplier": [], "Negation": ["lack of"], "Observation": [], "Person": ["old"], "Procedure": ["neurobehavioral tests", "gynecological surgery", "prostate surgery", "gastrointestinal surgery", "laparoscopic surgery", "bladder surgery", "stay in hospital"], "Qualifier": ["under general anesthesia", "elective"], "ReferencePoint": [], "Scope": ["hearing and vision impairment", "gastrointestinal, gynecological, prostate or bladder surgery"], "Temporal": [], "Value": ["= 2 hour", "at least 7 days after surgery", "= 60 years old"], "Visit": []}