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": ""}
 15257 m   m 16.8118       t. koyama dg    ?^ tenejapa; tenejapa; colonia 'ach'lum   5 Nees  Chiapas ?=ix    N 1966-08-23 RHYNCHOSPORA KUNTHII FAP<          
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Rhynchospora kunthii", "scientificNameAuthorship": "Nees", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "T. Koyama", "recordedBy": "", "recordNumber": "15257", "verbatimEventDate": "1966-08-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Chiapas", "county": "", "municipality": "", "locality": "Tenejapa; Tenejapa; Colonia 'Ach'lum", "decimalLatitude": "16.8118", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}