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": ""}
    sparse sort brush on calcareous gravelly slopes   VACHELLIA t_ w    F5FL CONSTRICTA    fabales 7b2    ` 244  T j. graham & m. johnston    XX MEXICO  -98.9956 6 Ba  santa fe; 12 mi e of general bravo do%  1959-11-14 )M  (BENTH) SEIGLER & EBINGER  vD  4716 `m  Nuevo Leon |nZ  VACHELLIA CONSTRICTA a   
{"catalogNumber": "", "order": "Fabales", "family": "", "scientificName": "Vachellia constricta", "scientificNameAuthorship": "(Benth.) Seigler & Ebinger ", "genus": "Vachellia", "subgenus": "", "specificEpithet": "constricta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. Graham & M. Johnston", "recordNumber": "4716", "verbatimEventDate": "1959-11-14", "habitat": "Sparse short brush on calcareous gravelly slopes", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "Santa Fe; 12 mi E of General Bravo", "decimalLatitude": "", "decimalLongitude": "-98.9956", "verbatimCoordinates": "", "minimumElevationInMeters": "244", "maximumElevationInMeters": ""}