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": ""}
   aMf 6944   ARKANSAS fk-?     ^4 139@0623 united states Q^H  SEVIER F:   Z  SCHKUHR EX WILLD. 1.2 miles west of Howard County (Lebanon vicinity) on US Highway 70. 5      Carex umbellata le <    POALES Ty   gH  carex   Z _pj CYPERACEAE   u]ME PHILIP E. HYTT   gsZXX umbellata 1996-04-15 La 
{"catalogNumber": "1390623", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex umbellata", "scientificNameAuthorship": "Schkuhr ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "umbellata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Philip E. Hyatt", "recordNumber": "6944", "verbatimEventDate": "1996-04-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Sevier", "municipality": "", "locality": "1.2 miles west of Howard County (Lebanon vicinity) on US Highway 70.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}