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": ""}
     1242975 TK  1964-08-02 B@    f locally abundant on sandy-mucky shore (probably exposed within past few weeks)    X  lihttorella    (kG [FULL DESCRIPTION ATTACHED TO SHEET]  LITTORELLA UNIFLORA rw[y6         /^ 46.454 18  r,eO MICHIGAN  
{"catalogNumber": "1242975", "order": "", "family": "", "scientificName": "Littorella uniflora", "scientificNameAuthorship": "", "genus": "Littorella", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1964-08-02", "habitat": "locally abundant on sandy-mucky shore (probably exposed within past few weeks)", "occurrenceRemarks": "[full description attached to sheet]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "46.45418", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}