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": ""}
  RaS % 1848-04     1501998 ?  4estivalis WG      knAD2 Alatamaha CRATAEGUS Z   (WALTER) TORR. & A.+ GRAY 4     p. Rosaceae    Qop) Tattall   z ~D 222  crataegus aestivalis 6   ROSALES B 4Wt 
{"catalogNumber": "1501998", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus aestivalis", "scientificNameAuthorship": "(Walter) Torr. & A. Gray", "genus": "Crataegus", "subgenus": "", "specificEpithet": "aestivalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "222", "verbatimEventDate": "1848-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Tattnall", "municipality": "", "locality": "Alatamaha", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}