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  CARL J. ROTHFES    03B@c CAREX PIGRA 2010-05-30  6$       g6 Caswell      h`@ north carolina     36.40278 ,ky g     )0$>] CONTACT UM HERBARIUM pigra Ez8     2N United States 3837 eh 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Carex pigra", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "pigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl J. Rothfels", "recordNumber": "3837", "verbatimEventDate": "2010-05-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "Caswell", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "36.40278", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}