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": ""}
1250468 fX_m&   JOHN H. EHLERS Dl=+   F;l( -84.902792   j#< BIG STONE BAY, LAKE MICHIG4N,      Artemisia campestris tZq  emmet QbJ`       T2YEU 45.746687  Asteraceae )m~        
{"catalogNumber": "1250468", "order": "", "family": "Asteraceae", "scientificName": "Artemisia campestris", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Emmet", "municipality": "", "locality": "Big Stone Bay, Lake Michigan,", "decimalLatitude": "45.746687", "decimalLongitude": "-84.902792", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}