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Update data/rag/knowledge_base/Abiotrophia/genus.json

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data/rag/knowledge_base/Abiotrophia/genus.json CHANGED
@@ -1,63 +1,131 @@
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  {
 
 
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  "genus": "Abiotrophia",
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- "taxonomic_rank": "Genus",
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- "family": "Aerococcaceae",
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- "gram_stain": "Positive",
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- "shape": "Cocci",
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- "arrangement": "Pairs; Chains",
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- "oxygen_requirement": "Facultative Anaerobe",
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- "motility": "Negative",
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- "spore_formation": "Negative",
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- "catalase": "Negative",
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- "oxidase": "Negative",
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-
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- "general_description": "Abiotrophia species are nutritionally variant, Gram-positive cocci that require specific growth factors such as pyridoxal (vitamin B6) for optimal growth. They are part of the normal oral and gastrointestinal flora but are clinically significant causes of infective endocarditis and bacteremia.",
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-
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- "growth_characteristics": {
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- "media_requirements": [
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- "Blood Agar with pyridoxal",
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- "Chocolate Agar",
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- "Satellite growth near Staphylococcus aureus"
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- ],
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- "growth_notes": "Poor or no growth on standard Blood Agar without supplementation. Satellite phenomenon may be observed.",
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- "haemolysis": "Variable"
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- },
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- "biochemical_profile_summary": {
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- "fermentation": "Variable",
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- "esculin_hydrolysis": "Negative",
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- "pyr_test": "Negative",
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- "bile_esculin": "Negative",
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- "salt_tolerance": "Negative"
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  },
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- "clinical_significance": {
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- "primary_associations": [
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- "Infective endocarditis",
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- "Bacteremia"
 
 
 
 
 
 
 
 
 
 
 
 
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  ],
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- "risk_groups": [
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- "Patients with damaged heart valves",
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- "Immunocompromised individuals"
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- ]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  },
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- "common_misidentifications": [
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- "Viridans group Streptococcus",
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- "Granulicatella"
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ],
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- "key_differentiators_vs_similar_genera": {
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- "Streptococcus": "Requires pyridoxal or shows satellite growth; poor growth on routine media",
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- "Granulicatella": "Closely related; molecular methods often required for definitive separation"
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- },
 
 
 
 
 
 
 
 
 
 
 
 
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- "recommended_confirmatory_methods": [
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- "Pyridoxal supplementation testing",
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- "Satellite growth observation",
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- "MALDI-TOF MS",
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- "16S rRNA gene sequencing"
 
 
 
 
 
 
 
 
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  ],
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- "rag_usage_notes": "Consider Abiotrophia when Gram-positive cocci are observed with poor growth on standard media or in cases of culture-negative endocarditis."
 
 
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  }
 
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  {
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+ "schema_version": "1.0",
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+ "level": "genus",
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  "genus": "Abiotrophia",
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ "overview": {
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+ "short": "Abiotrophia species are fastidious Gram-positive cocci, historically classified as nutritionally variant streptococci, requiring enriched media or growth factors for optimal growth.",
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+ "clinical_context": "Primarily associated with infective endocarditis and other invasive infections, particularly in blood culture isolates."
 
 
 
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  },
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+ "expected_fields": {
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+ "Gram Stain": "Positive",
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+ "Shape": "Cocci",
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+ "Motility": "Negative",
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+ "Capsule": "Unknown",
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+ "Spore Formation": "Negative",
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+ "Haemolysis": "Variable",
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+ "Haemolysis Type": "Variable",
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+ "Media Grown On": [
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+ "Blood Agar",
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+ "Chocolate Agar"
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+ ],
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+ "Colony Morphology": [
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+ "Small",
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+ "Grey",
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+ "Translucent"
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  ],
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+ "Oxygen Requirement": "Facultative Anaerobe",
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+ "Growth Temperature": "35//37",
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+ "Catalase": "Negative",
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+ "Oxidase": "Negative",
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+ "Indole": "Negative",
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+ "Urease": "Negative",
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+ "Citrate": "Negative",
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+ "Methyl Red": "Unknown",
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+ "VP": "Unknown",
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+ "H2S": "Negative",
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+ "DNase": "Negative",
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+ "ONPG": "Unknown",
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+ "Coagulase": "Negative",
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+ "Gelatin Hydrolysis": "Negative",
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+ "Esculin Hydrolysis": "Negative",
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+ "Nitrate Reduction": "Negative",
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+ "NaCl Tolerant (>=6%)": "Negative",
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+ "Lipase Test": "Negative",
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+ "Lysine Decarboxylase": "Unknown",
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+ "Ornithine Decarboxylase": "Unknown",
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+ "Ornitihine Decarboxylase": "Unknown",
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+ "Arginine dihydrolase": "Negative",
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+ "Glucose Fermentation": "Positive",
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+ "Lactose Fermentation": "Negative",
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+ "Sucrose Fermentation": "Variable",
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+ "Maltose Fermentation": "Variable",
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+ "Mannitol Fermentation": "Negative",
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+ "Sorbitol Fermentation": "Negative",
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+ "Xylose Fermentation": "Negative",
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+ "Rhamnose Fermentation": "Negative",
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+ "Arabinose Fermentation": "Negative",
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+ "Raffinose Fermentation": "Negative",
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+ "Trehalose Fermentation": "Variable",
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+ "Inositol Fermentation": "Negative",
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+ "Gas Production": "Negative",
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+ "TSI Pattern": "Unknown",
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+ "Colony Pattern": "Unknown",
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+ "Pigment": "None",
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+ "Motility Type": "None"
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+ },
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+
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+ "field_notes": {
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+ "Media Grown On": "Growth is often poor on standard Blood Agar unless pyridoxal or satellite growth around helper organisms is present.",
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+ "Haemolysis": "Haemolytic reactions are inconsistent and not reliable for identification.",
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+ "ONPG": "Typically not reported due to fastidious growth requirements."
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  },
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+ "key_differentiators": [
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+ {
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+ "field": "Catalase",
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+ "expected": "Negative",
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+ "distinguishes_from": ["Staphylococcus"],
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+ "notes": "Catalase negativity separates Abiotrophia from staphylococci."
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+ },
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+ {
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+ "field": "Media Grown On",
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+ "expected": "Fastidious growth",
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+ "distinguishes_from": ["Streptococcus", "Enterococcus"],
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+ "notes": "Requirement for enriched media or growth factors distinguishes Abiotrophia from most streptococci."
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+ },
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+ {
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+ "field": "NaCl Tolerant (>=6%)",
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+ "expected": "Negative",
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+ "distinguishes_from": ["Enterococcus"],
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+ "notes": "Lack of salt tolerance helps separate from enterococci."
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+ }
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  ],
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+ "common_confusions": [
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+ {
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+ "genus": "Streptococcus",
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+ "reason": "Similar Gram-positive cocci morphology and catalase-negative profile."
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+ },
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+ {
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+ "genus": "Granulicatella",
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+ "reason": "Closely related nutritionally variant streptococci with overlapping phenotypes."
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+ }
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+ ],
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+
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+ "when_to_question_identification": [
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+ "Failure to grow on routine media without supplementation.",
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+ "Blood culture isolate with streptococcus-like morphology but inconsistent biochemical results.",
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+ "Endocarditis isolate that does not fully match Streptococcus profiles."
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+ ],
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+ "recommended_next_tests": [
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+ {
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+ "test": "Pyridoxal supplementation or satellite test",
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+ "reason": "Confirms nutritionally variant growth requirements."
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+ },
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+ {
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+ "test": "MALDI-TOF MS",
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+ "reason": "Preferred for reliable genus and species-level identification."
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+ },
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+ {
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+ "test": "16S rRNA sequencing",
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+ "reason": "Recommended when phenotypic identification is inconclusive."
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+ }
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  ],
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+ "supported_species": [
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+ "defectiva"
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+ ]
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  }