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": ""}
 4i7hU prunus tomentosa     9?C ROBERT W. SMSITH  | thunb. lenawee =8b3    fX Rosaceae        yg 1986-04-28    ^ Roadside banl/  PRUNUS 1#<#)   ( + -84.012925   PjH3f 1468457   ROSALES e I  United States SY% /   7 tomentosa
{"catalogNumber": "1468457", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus tomentosa", "scientificNameAuthorship": "Thunb.", "genus": "Prunus", "subgenus": "", "specificEpithet": "tomentosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert W. Smith", "recordNumber": "", "verbatimEventDate": "1986-04-28", "habitat": "Roadside banl/", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Lenawee", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.012925", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}