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": ""}
  un 8 Alismatales   SyT Mert. & W.D.J. Koch     T^5 F UNITED STATES   m=+ 1975-07-13   UoLv9 c. barre hellquist  potamogeton 9     idB5+ schoolcraft   5 worchester lake ca. 8 miles n.e. of shingleton       ^Z a) 1244948  gqCqr obtusifolius 
{"catalogNumber": "1244948", "order": "Alismatales", "family": "", "scientificName": "", "scientificNameAuthorship": "Mert. & W.D.J. Koch", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "obtusifolius", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Barre Hellquist", "recordNumber": "", "verbatimEventDate": "1975-07-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Schoolcraft", "municipality": "", "locality": "Worchester Lake ca. 8 miles N.E. of Shingleton,", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}