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": ""}
   L 18.3465  ! maculata   Fd cyrus g. pringle     CO -99.5442  REMOTIFLORA Y      var. Ef;   Dioscorea remotiflora var. maculata Bg   DoXX` 1900-10    QWbOs Guerrero mexico V.   .cy 1145832  IGUALA DE LA INDEPENDENCIA; IGUALA rG4 
{"catalogNumber": "1145832", "order": "", "family": "", "scientificName": "Dioscorea remotiflora var. maculata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "remotiflora", "verbatimTaxonRank": "var.", "infraspecificEpithet": "maculata", "identifiedBy": "", "recordedBy": "Cyrus G. Pringle", "recordNumber": "", "verbatimEventDate": "1900-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guerrero", "county": "", "municipality": "", "locality": "Iguala de la Independencia; Iguala", "decimalLatitude": "18.3465", "decimalLongitude": "-99.5442", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}