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": ""}
 1948-07-20 :NE=     Bm 1475261 l. oqJ   * Edward G. Voss [Sep al-patch at most weakly pubescent; spathe margins Â± darkened]. x5JDs  Asparagales B   iris [Q   J) VERSICOLOR   Ipris versicolor  q        wet roadside. DU o  united states %eO:2      
{"catalogNumber": "1475261", "order": "Asparagales", "family": "", "scientificName": "Iris versicolor", "scientificNameAuthorship": "L.", "genus": "Iris", "subgenus": "", "specificEpithet": "versicolor", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "", "verbatimEventDate": "1948-07-20", "habitat": "Wet roadside.", "occurrenceRemarks": "[Sepal-patch at most weakly pubescent; spathe margins \u00c2\u00b1 darkened].", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}