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": ""}
RANUNCULACEAE Ri   zS^ / nigella sativa  2wy~j Uniteo States      8 Champaign OHIO E A    a 1838-07-09   k3 I 149i8891   0e MR. BETHUEL SAMPLES' GARDEN IN URBANA    john samples F   2%f]b Ranunculales    N 421  6+0 NIGELLA  i  garden sativa | UU   ^x Tt l. 
{"catalogNumber": "1498891", "order": "Ranunculales", "family": "Ranunculaceae", "scientificName": "Nigella sativa", "scientificNameAuthorship": "L.", "genus": "Nigella", "subgenus": "", "specificEpithet": "sativa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Samples", "recordNumber": "421", "verbatimEventDate": "1838-07-09", "habitat": "Garden", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Ohio", "county": "Champaign", "municipality": "", "locality": "Mr. Bethuel Samples' garden in Urbana", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}