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": ""}
 yperaceae       Mack. w(wPz    9  4 6640 1993-09-13 ^$       EP barbara l. wlson  united states nIeL      carex sheldonii & eS  OREGON  &      ~ Hxt 1606   eM  SHELDONII
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Carex sheldonii", "scientificNameAuthorship": "Mack.", "genus": "", "subgenus": "", "specificEpithet": "sheldonii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Barbara L. Wilson", "recordNumber": "6640", "verbatimEventDate": "1993-09-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Oregon", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1606", "maximumElevationInMeters": ""}