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": ""}
  BK> 1451541  + nl CONTACT UM HERBARIUM     Fabaceae 50   Z| Fbales  0. DIFFUSUS  z nutt.  | united states 5249 m]WR  qLUPINUS DIFFUSUS U4     ^_L lupinvs         A,N North Carolina   ROBERT L. WILBUR ?QU^ 
{"catalogNumber": "1451541", "order": "Fabales", "family": "Fabaceae", "scientificName": "Lupinus diffusus", "scientificNameAuthorship": "Nutt.", "genus": "Lupinus", "subgenus": "", "specificEpithet": "diffusus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert L. Wilbur", "recordNumber": "5249", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}