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": ""}
RIVER KNOBS (SW END), ABOVE CLINCH RIVER (N SIDE, RIVER MILE 203.5) & ST RT 625 ABOUT 12 M SW OF SPEERS FERRY. *X K7   Fe cyperaceae     SPARGANIOIDES     yO MVHL. EX WILLD. SCOTT !:bNq   poales [i  CAREX (nD>  CAREX SPARGANIOIDES $sP-  thomas f. wieboldt U!      W 463  g5 1997-06-12     x9* 9730 united states g   mR virginia   Q6 1387081 
{"catalogNumber": "1387081", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex sparganioides", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "sparganioides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thomas F. Wieboldt", "recordNumber": "9730", "verbatimEventDate": "1997-06-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Virginia", "county": "Scott", "municipality": "", "locality": "River Knobs (SW end), above Clinch River (N side, River Mile 203.5) & St Rt 625 about 12 km SW of Speers Ferry.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "463", "maximumElevationInMeters": ""}