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": ""}
   U 45.416252     Leelanau ZF   H;P:] 1249569  1986-08-13 zg2   :aY  Ambrosia artemisiifolia united states $b&[   L. CKwZ   ij ARTEMISIIFOLIA ASTERA LES JGeU   f?L1F bran t. hazlett  F6 ambrosia Michigan Lw      )i<e 4652   = -85.848907 Small field w zq  Asteraceae Y    tb outh Fox Island along main tral sec. 32 SE 1/4.
{"catalogNumber": "1249569", "order": "Asterales", "family": "Asteraceae", "scientificName": "Ambrosia artemisiifolia", "scientificNameAuthorship": "L.", "genus": "Ambrosia", "subgenus": "", "specificEpithet": "artemisiifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Brian T. Hazlett", "recordNumber": "4652", "verbatimEventDate": "1986-08-13", "habitat": "Small field", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Leelanau", "municipality": "", "locality": "South Fox Island along main trail sec. 32 SE 1/4.", "decimalLatitude": "45.416252", "decimalLongitude": "-85.848907", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}