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": ""}
  6881     o. Arkansas   YS`/ 1996-04-11  W-S=r philip e. hyatt     LgV48 C4rex Dallas  ? #     carex umbellata K   ! Cyperaceae  7 UNITED STATE POALES %N         c trs: t10s r17w sec 15  k?L- 4.0 milesnorth of Ouachita County on Ark Hwy 7.
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex umbellata", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Philip E. Hyatt", "recordNumber": "6881", "verbatimEventDate": "1996-04-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Dallas", "municipality": "", "locality": "4.0 miles north of Ouachita County on Ark Hwy 7.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "TRS: T10S R17W sec 15", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}