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": ""}
 a. gray ?whZ  George T. Thurber q+t   nF/<  Table-lands area, Mexican boundary      B Fabales 1104218 =5pl     ` 646  ARIZONA o    UNITED STATES [D=   +7 1852 OLNEYA 3O    TESOT 6k2   Olneya tesota ` N h    FABACEAE s  
{"catalogNumber": "1104218", "order": "Fabales", "family": "Fabaceae", "scientificName": "Olneya tesota", "scientificNameAuthorship": "A. Gray", "genus": "Olneya", "subgenus": "", "specificEpithet": "tesota", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George T. Thurber", "recordNumber": "646", "verbatimEventDate": "1852", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "", "municipality": "", "locality": "Table-lands area, Mexican boundary", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}