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": ""}
euphorbiaceae _i     : salta CURIOSUS 6rB   -26.0406167 [   -65.9750333 E*Tf3      S 026Â° 02.437' W 065Â° 58.502' ]      Argentina ANO  croton ek    z@LA 1660860      
{"catalogNumber": "1660860", "order": "", "family": "Euphorbiaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "curiosus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Argentina", "stateProvince": "Salta", "county": "", "municipality": "", "locality": "", "decimalLatitude": "-26.0406167", "decimalLongitude": "-65.9750333", "verbatimCoordinates": "S 026\u00c2\u00b0 02.437' W 065\u00c2\u00b0 58.502'", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}