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": ""}
 1964-06-29 cV~    Michigan d_Ax$      Schoolcraft ]!y7           d 1280241  N  Rchb. "loose pieces occasional, caught in floating leaves of brasenia," x+P.+    rdVM 46.45501  Potamogeton confervoides !Nl  -86.26525 M  confervoides *d 
{"catalogNumber": "1280241", "order": "", "family": "", "scientificName": "Potamogeton confervoides", "scientificNameAuthorship": "Rchb.", "genus": "", "subgenus": "", "specificEpithet": "confervoides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1964-06-29", "habitat": "", "occurrenceRemarks": "\"loose pieces occasional, caught in floating leaves of Brasenia,\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Schoolcraft", "municipality": "", "locality": "", "decimalLatitude": "46.45501", "decimalLongitude": "-86.26525", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}