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": ""}
      1964-07-03 2x  potamogetonaceaeP[t9  Potamogeton B241]   MICHIGANDtaM         !q  potamogeton gramineus  2s(9X united states SENEY NATIONAL WILDLIFE REFUGE F 1 POOL IN MIDDLE OF LAKE....S~EC. 20 &HvH    Chester W. Laskowski a T  1280766 WAp     alismatales [DF!=  
{"catalogNumber": "1280766", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton gramineus", "scientificNameAuthorship": "", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Chester W. Laskowski", "recordNumber": "", "verbatimEventDate": "1964-07-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Seney National Wildlife Refuge F 1 Pool in middle of lake....Sec. 20", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}