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. ~   b%  -83.6745  lactuca canadensis P;    @G 1939-07-22    Zt Asteraceae  BND canadensis  s  BETY M. ROBERTSON 1255353 O^gn    ( asterales   ML5A united states     lS`t Lactuca  fj= Michigan 42.0196 ?  Along roadside, k_   4H M0NROE 4 1/2 MI. S OF MILAN, `LG  294 suO3- 
{"catalogNumber": "1255353", "order": "Asterales", "family": "Asteraceae", "scientificName": "Lactuca canadensis", "scientificNameAuthorship": "L.", "genus": "Lactuca", "subgenus": "", "specificEpithet": "canadensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "294", "verbatimEventDate": "1939-07-22", "habitat": "Along roadside,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Monroe", "municipality": "", "locality": "4 1/2 mi. S. of Milan,", "decimalLatitude": "42.0196", "decimalLongitude": "-83.6745", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}