Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
 r a. ruth Tennessee mT;;   RTV  (Muhl. ex Willd.) W. A. Weber & Ã. LÃ¶ve  Astrales F4   rich soil ]Oo     OBOVATA  K  s.n. ef      GRPM 50982 T0 Q>   JY asteraceae         i  1539120 1894-03 9!  UNITED ST4TES  B;-0   
{"catalogNumber": "1539120", "order": "Asterales", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "(Muhl. ex Willd.) W. A. Weber & \u00c3\u0081. L\u00c3\u00b6ve", "genus": "", "subgenus": "", "specificEpithet": "obovata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Ruth", "recordNumber": "s.n.", "verbatimEventDate": "1894-03", "habitat": "Rich soil", "occurrenceRemarks": "GRPM 50982", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}