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": ""}
 1973-07-12 Ma=     ALGER Y7  cratTaegus nkaua   rosaceae 8$T6     46.651732 ~?(p    United States      G Rosales  roger w. sanders b T6x    ~A1 1318575   # linol.    AQn ca 5 mi. WSW of Grand Marais, W end of Grand Sable Dunes. Along Lake Superior. 
{"catalogNumber": "1318575", "order": "Rosales", "family": "Rosaceae", "scientificName": "", "scientificNameAuthorship": "Lindl.", "genus": "Crataegus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Roger W. Sanders", "recordNumber": "", "verbatimEventDate": "1973-07-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Alger", "municipality": "", "locality": "ca. 5 mi. WSW of Grand Marais, W end of Grand Sable Dunes. Along Lake Superior.", "decimalLatitude": "46.651732", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}