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: ["HealthCareActivity", "InjuryOrPoisoning", "BodySubstance", "IntellectualProduct", "AnatomicalStructure", "SpatialConcept", "Chemical", "Bacterium", "MedicalDevice", "Organization", "BiomedicalOccupationOrDiscipline", "Finding", "BiologicFunction", "Virus", "ResearchActivity", "ClinicalAttribute", "PopulationGroup", "Eukaryote", "BodySystem", "Food", "ProfessionalOrOccupationalGroup"].

Please return the output as a JSON object of the format: {"Virus": ["HIV", ...], "Bacterium": ["MRSA", ...], "AnatomicalStructure": ["Lung", ...], "BodySystem": ["CNS", ...], "BodySubstance": ["Serum", ...], "Finding": ["Headache", ...], "InjuryOrPoisoning": ["Fracture", ...], "BiologicFunction": ["Death", ...], "HealthCareActivity": ["Biopsy", ...], "ResearchActivity": ["Clinical trial", ...], "MedicalDevice": ["Lenses", ...], "SpatialConcept": ["Camps", ...], "BiomedicalOccupationOrDiscipline": ["Forensic medicine", ...], "Organization": ["WHO", ...], "ProfessionalOrOccupationalGroup": ["Provider", ...], "PopulationGroup": ["Swimmers", ...], "Chemical": ["Gold", ...], "Food": ["Rice", ...], "IntellectualProduct": ["RPAM", ...], "ClinicalAttribute": ["Biomarker", ...], "Eukaryote": ["Dogs", ...]}. 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:

A closer look at school bonding among African American adolescents in low-income communities: A latent class analysis Positive school bonding is a significant precursor to students ' school success. However, African American youth report lower school success compared with their White counterparts. This study examined correlates of school bonding among 633 African American youth who were recruited from community settings in Chicago. Major findings indicated that negative peer norms, exposure to community violence, and poor mental health were negatively correlated with school bonding, while parental monitoring, positive self-regard, and future orientation were correlated with higher school motivation. Students classified as having high or moderate school bonding were more likely to live with both parents, experience higher levels of parental monitoring, and exhibit positive self-regard. Implications are discussed in view of these findings.
{"AnatomicalStructure": [], "Bacterium": [], "BiologicFunction": ["mental health", "orientation", "bonding", "experience", "motivation"], "BiomedicalOccupationOrDiscipline": [], "BodySubstance": [], "BodySystem": [], "Chemical": [], "ClinicalAttribute": [], "Eukaryote": [], "Finding": ["Positive", "negatively", "findings", "negative peer norms"], "Food": [], "HealthCareActivity": [], "InjuryOrPoisoning": [], "IntellectualProduct": ["classified"], "MedicalDevice": [], "Organization": ["school"], "PopulationGroup": ["low-income communities", "Students", "African American", "White counterparts", "students"], "ProfessionalOrOccupationalGroup": [], "ResearchActivity": ["study", "latent class analysis"], "SpatialConcept": ["Chicago"], "Virus": []}