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": ""}
 18520 bf=?y   dUl Guerrero    Jerzy Rzedowski  JZ Shirley A. Graham  cuphea d,#   _ 1262794 myrtales 0c     ]2v CUPHEA BUSTAMANTA  mexico H5+O[    (J 1964-08-08 contact um herbarium ]?    69_U bustamanta         h Lythraceae  2 lex.
{"catalogNumber": "1262794", "order": "Myrtales", "family": "Lythraceae", "scientificName": "Cuphea bustamanta", "scientificNameAuthorship": "Lex.", "genus": "Cuphea", "subgenus": "", "specificEpithet": "bustamanta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Shirley A. Graham", "recordedBy": "Jerzy Rzedowski", "recordNumber": "18520", "verbatimEventDate": "1964-08-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guerrero", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}