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": ""}
   iosco 4     1999-05-18 Ux    7[  -83.35163   Amelanchier laevis % >1I        nSx laevis   AMELANCHIER +    M.B. BURGESS, C.S. CAMPBELL WN.2`     Y$!H 1517511
{"catalogNumber": "1517511", "order": "", "family": "", "scientificName": "Amelanchier laevis", "scientificNameAuthorship": "", "genus": "Amelanchier", "subgenus": "", "specificEpithet": "laevis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "M.B. Burgess, C.S. Campbell", "recordNumber": "", "verbatimEventDate": "1999-05-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Iosco", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.35163", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}