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:

rearthroplasty
ASA IV-V
inadequate spoken finnish for reliable pain assessment
Dementia or otherwise impaired cognition
contraindication for any medication or substance used in survey protocol
weight <50kg or BMI =35 kg/m2
preoperative SpO2 less than 93%
clinical suspicion that subject can not use PCA adequately
history of substance abuse or current excessive use of alcohol
preoperative use of either pregabalin, gabapentin or strong opiates
{"Condition": ["substance abuse", "Dementia", "excessive use of alcohol", "contraindication", "impaired cognition"], "Device": [], "Drug": ["strong opiates", "gabapentin", "pregabalin", "substance used in survey protocol", "cation or  in survey protocol\nwe"], "Measurement": ["SpO2", "BMI", "ASA", "weight"], "Mood": ["clinical suspicion"], "Multiplier": [], "Negation": [], "Observation": ["history", "subject can not use PCA adequately", "inadequate spoken finnish"], "Person": [], "Procedure": ["rearthroplasty", "reliable pain assessment"], "Qualifier": [], "ReferencePoint": [], "Scope": ["pregabalin, gabapentin or strong opiates", "medication or substance used in survey protocol"], "Temporal": ["current", "preoperative"], "Value": ["\u003c50kg", "=35 kg/m2", "IV-V", "less than 93%"], "Visit": []}