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": ""}
     @YvN maculatum    y<h s. n.   not evident +     x`Fz: MICHIGAN   _7 %  -84.6087 43.4096 .|U   st. louis  BM;   GERANIACEAE ,,;  geranium 5sh|~  WOODS *Yu?   HU4=w 1556544  ^~`S@ No. 9 1892-05-06 U4  
{"catalogNumber": "1556544", "order": "", "family": "Geraniaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Geranium", "subgenus": "", "specificEpithet": "maculatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s. n.", "verbatimEventDate": "1892-05-06", "habitat": "Woods", "occurrenceRemarks": "No. 9", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "St. Louis", "decimalLatitude": "43.4096", "decimalLongitude": "-84.6087", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}