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": ""}
 >v2I marshall c. johnston  mexico er+An      j&fZS 1939-06-21  G:xXE receptora de televisa; monterrey; cerro de la silla  M?A 518  +&h8 1147819     NUEVO LEON npTVu   Tbu~ Fabales  ^E2 25.6412   1 (benth.) seigler & ebinger  *nF Guadalupe   F rigidula 1418 $/3!    lB fabaceae    VACHELLIA RIGIDULA -VL  
{"catalogNumber": "1147819", "order": "Fabales", "family": "Fabaceae", "scientificName": "Vachellia rigidula", "scientificNameAuthorship": "(Benth.) Seigler & Ebinger", "genus": "", "subgenus": "", "specificEpithet": "rigidula", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Marshall C. Johnston", "recordedBy": "", "recordNumber": "1418", "verbatimEventDate": "1939-06-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nuevo Leon", "county": "Guadalupe", "municipality": "", "locality": "Receptora de Televisa; Monterrey; Cerro de la Silla", "decimalLatitude": "25.6412", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "518", "maximumElevationInMeters": ""}