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:

Multiple pregnancy
Prior spontaneous preterm birth or second trimester losses between 16(0) and 36(6) weeks
Cerclage in situ
Painful regular uterine contraction and/or preterm labor
Ruptured membranes
Major fetal defects
Active vaginal bleeding
Placenda previa and/or accreta
Cervical dilation >1.5 cm and/or visible membranes by pelvic exam
Suspicion of chorioamnionitis
{"Condition": ["losses", "preterm labor", "chorioamnionitis", "Placenda previa", "visible membranes", "Active vaginal bleeding", "Major fetal defects", "accreta", "spontaneous preterm birth", "Cerclage in situ", "Painful regular uterine contraction", "Ruptured membranes", "Multiple pregnancy"], "Device": [], "Drug": [], "Measurement": ["Cervical dilation"], "Mood": ["Suspicion of"], "Multiplier": [], "Negation": [], "Observation": [], "Person": [], "Procedure": ["pelvic exam"], "Qualifier": ["between 16(0) and 36(6) weeks", "second trimester"], "ReferencePoint": [], "Scope": ["spontaneous preterm birth or second trimester losses between 16(0) and 36(6) weeks"], "Temporal": ["Prior"], "Value": ["\u003e1.5 cm"], "Visit": []}