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": ""}
 =Mn Alismatales  2Gf 1283855   m potamogeton   exd3 Ontario    potamogetonaceae !P   K 1974-07-10   O=P Potamogeton berchtoldii     Simcoe SxTo_  BERCHTOLDII T&  CANADA N    ZL6 R. Showkewych & R.S.W. Bobbette     % CONTACT UM HERBARIUM   wL!u fieber
{"catalogNumber": "1283855", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton berchtoldii", "scientificNameAuthorship": "Fieber", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "berchtoldii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. Showkewych & R.S.W. Bobbette", "recordNumber": "", "verbatimEventDate": "1974-07-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Simcoe", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}