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": ""}
   19@31-01-01  GUU   belize 3    [2Gk paul c. standley     S celtis iguanaea  Celtis 8LcIX       Z; Corozal  tl (jacq.) sarg.  iguanaea ui|Z    ;  Percy H. Gentle  1 467  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Celtis iguanaea", "scientificNameAuthorship": "(Jacq.) Sarg.", "genus": "Celtis", "subgenus": "", "specificEpithet": "iguanaea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Paul C. Standley", "recordedBy": "Percy H. Gentle", "recordNumber": "467", "verbatimEventDate": "1931-01-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Belize", "stateProvince": "Corozal", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}