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": ""}
 7a~  Robert Kral South Carolina X     Yt5 CYPERACEAE United States H W    ANNUA Yh    (all.) roem. & schult. k.    u. k7 Fimbristylis       19149 Lf   TIr^ 1963-08-28 Fimbristylis annua      I 1395929   f_P 4 mi n monck's corner.
{"catalogNumber": "1395929", "order": "", "family": "Cyperaceae", "scientificName": "Fimbristylis annua", "scientificNameAuthorship": "(All.) Roem. & Schult.", "genus": "Fimbristylis", "subgenus": "", "specificEpithet": "annua", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Kral", "recordNumber": "19149", "verbatimEventDate": "1963-08-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "South Carolina", "county": "", "municipality": "", "locality": "4 mi N Monck's Corner.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}