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": ""}
  4618 ~0AX      (SM.) RICKER EX HITCHC. G      -kp. lot 2, conc. ii, oro twp., 3.5 miles ene of barrie.  jXY 7j Ontario    1977-07-15 &NU       OD racemosa      
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(Sm.) Ricker ex Hitchc.", "genus": "", "subgenus": "", "specificEpithet": "racemosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4618", "verbatimEventDate": "1977-07-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Lot 2, Conc. II, Oro Twp., 3.5 miles ENE of Barrie.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}