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": ""}
  Oaxaca n[4    ARRABIDAEA FLORIBUNDA  8g   Y floribunda  q  Loes.   Arrabidaea p3)        ?i 1502  y flat grazed areas 3-4 km. west of italtsepec 1969-07-10 31y     Mexico *  asunciã³n ixtaltepec  gq:n      U 1540271  
{"catalogNumber": "1540271", "order": "", "family": "", "scientificName": "Arrabidaea floribunda", "scientificNameAuthorship": "Loes.", "genus": "Arrabidaea", "subgenus": "", "specificEpithet": "floribunda", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1502", "verbatimEventDate": "1969-07-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Oaxaca", "county": "Asunci\u00c3\u00b3n Ixtaltepec", "municipality": "", "locality": "Flat grazed areas 3-4 km. west of Ixtaltepec", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}