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": ""}
john h. ehlers y!   UNITED STATES  A$+4  (l.) dc. _~q   # ROADSIDE  h` INCANA Michigan Y       J t  45.72871 3510 #%Wk,    !RDV field and roadside [cu] US-31 NEAR MACKINAW CITY $y   berteroa incana hyXF0   Q0 EMMET  9 -84.73515  1462131 5,  brassicales MYb     e>Jq 1927-07-09 BerteJroa A/!   
{"catalogNumber": "1462131", "order": "Brassicales", "family": "", "scientificName": "Berteroa incana", "scientificNameAuthorship": "(L.) DC.", "genus": "Berteroa", "subgenus": "", "specificEpithet": "incana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "3510", "verbatimEventDate": "1927-07-09", "habitat": "Roadside", "occurrenceRemarks": "Field and Roadside [CU]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "US-31 near Mackinaw City", "decimalLatitude": "45.72871", "decimalLongitude": "-84.73515", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}