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": ""}
 uY  1972-09-10   Bv  4491    4 4. GRAY caroliniana h   K`9Z4 cabomba caroliniana  n;J massachusetts  4BOz middlesKex      !]f sudbury river, central street, framingham. |431722 .B  UNITED STATES z%(  Cabomba I=T   PH 6.65; ALKALINITY 12.0 PPM. A     b^ nymphaeales  C. Barre Hellquist  3u Y   %&XL. Cabombaceae  44 *.:X2  
{"catalogNumber": "1431722", "order": "Nymphaeales", "family": "Cabombaceae", "scientificName": "Cabomba caroliniana", "scientificNameAuthorship": "A. Gray", "genus": "Cabomba", "subgenus": "", "specificEpithet": "caroliniana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Barre Hellquist", "recordNumber": "4491", "verbatimEventDate": "1972-09-10", "habitat": "", "occurrenceRemarks": "pH 6.65; alkalinity 12.0 ppm.", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "Middlesex", "municipality": "", "locality": "Sudbury River, Central Street, Framingham.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "44", "maximumElevationInMeters": ""}