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 $  1257196 &J+u7      1934-08-18 $n3f   -84.696193 [   AITON Ldk    ASPEN ASSOCIATION, SNjV       Sq4l% michigan  0eAi Douglas Lake,     CHEBOYGAN E2   1Z 45.580365 SOLIDAGO NEMORALIS `I:     = united states
{"catalogNumber": "1257196", "order": "", "family": "", "scientificName": "Solidago nemoralis", "scientificNameAuthorship": "Aiton", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "", "verbatimEventDate": "1934-08-18", "habitat": "Aspen Association,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Cheboygan", "municipality": "", "locality": "Douglas Lake,", "decimalLatitude": "45.580365", "decimalLongitude": "-84.696193", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}