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": ""}
  yf?L dioscorea densiflora   m  ESCUINTLA  Mexico AxC h  1145604 e0]P     $.l 1018  tb E5CUINTLA; ESCUINTLA  ak_ Hemsl.   W Dioscorea chiapas :     70 1936-12-02    15.3187   3izi matuda .!R  densiflora Q  z  B.G. SCHUBERT :a6W  DIOSCOREALES H8M<w    O] qr -92.6585  w DIOSCOREACEAE
{"catalogNumber": "1145604", "order": "Dioscoreales", "family": "Dioscoreaceae", "scientificName": "Dioscorea densiflora", "scientificNameAuthorship": "Hemsl.", "genus": "Dioscorea", "subgenus": "", "specificEpithet": "densiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "B.G. Schubert", "recordedBy": "Eizi Matuda", "recordNumber": "1018", "verbatimEventDate": "1936-12-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Chiapas", "county": "Escuintla", "municipality": "", "locality": "Escuintla; Escuintla", "decimalLatitude": "15.3187", "decimalLongitude": "-92.6585", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}