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": ""}
    RB>&_ CENTAUREA      fND anton a. reznicek 2014-09-14 9|    | l6B CENTAUREA NIGRESCENS           n$$r -83.6518   <)0K OPEN AREA UNDER POWER LINES. WITH BROMUS INERMIS, VERBESINA ALTERNIFOLIA, DIPSACUS FULLONUM.    
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Centaurea nigrescens", "scientificNameAuthorship": "", "genus": "Centaurea", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2014-09-14", "habitat": "Open area under power lines. With Bromus inermis, Verbesina alternifolia, Dipsacus fullonum.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.6518", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}