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": ""}
 gE@w L.  irsinapis arvensis Frederick J. Hermann b   Z=,  1926-06-26    &^lR 1464251   n|E 47.250352  auBz~ Brassicaceae    [fruit sparsely hwispid] kSad   arvensis ig[  303 /    K6+y5 united states       
{"catalogNumber": "1464251", "order": "", "family": "Brassicaceae", "scientificName": "Sinapis arvensis", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "arvensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick J. Hermann", "recordNumber": "303", "verbatimEventDate": "1926-06-26", "habitat": "", "occurrenceRemarks": "[fruit sparsely hispid]", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "47.250352", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}