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": ""}
   L. dl  44.836438 JJ   ?V ARTEMISIIFOLIA     mmg~  2967   Asteraceae ( K     Yn Brian 7. Hazlett ambrosia rrQ  MICHIGAN ,4    DISTURBED GROUND RNN  X J 1984-08-21   at corner of fredrickson rd. and m-22 sec. 17 ne1/4 empire twp. Qko+f    
{"catalogNumber": "", "order": "", "family": "Asteraceae", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Ambrosia", "subgenus": "", "specificEpithet": "artemisiifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Brian T. Hazlett", "recordNumber": "2967", "verbatimEventDate": "1984-08-21", "habitat": "Disturbed ground", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "at corner of Fredrickson Rd. and M-22 sec. 17 NE1/4 Empire Twp.", "decimalLatitude": "44.836438", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}