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": ""}
  8 L. tennessee DW   oX[ ALONG RT 99 ABOUT 6.8 MILES WEST OF RT 31A.  CPL 98-841  tV+ united states    cyperus X=7   z Z marshall  (8 Poales    c P 1393468  : flavescens    & 1998-09-02   SO cyperaceae vern e. mcneilus 4 /       CYPERUS FLAVESCENS  
{"catalogNumber": "1393468", "order": "Poales", "family": "Cyperaceae", "scientificName": "Cyperus flavescens", "scientificNameAuthorship": "L.", "genus": "Cyperus", "subgenus": "", "specificEpithet": "flavescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Vern E. McNeilus", "recordNumber": "98-841", "verbatimEventDate": "1998-09-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Marshall", "municipality": "", "locality": "Along Rt 99 about 6.8 miles west of Rt 31A.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}