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": ""}
 1939-08-06 NZ   3| 1345844   RANUNCULACEAE   ::  42.759 ] /    *( -84.7542 betty m. robertson #6=,    P % o "ONLY OME PLANT PRESENT"  w7nl. 1/2 MI. NW OF GRAND LEDGE United States Rnq4   A/ ranunculus pensylvanicus      gd$ RANUNCULUS  deT MICHIGAN  ALONG MUDY INCUT FROM RIVER G7/   :qZ% 341    !<) l. f. eaton REb 
{"catalogNumber": "1345844", "order": "", "family": "Ranunculaceae", "scientificName": "Ranunculus pensylvanicus", "scientificNameAuthorship": "L. f.", "genus": "Ranunculus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Betty M. Robertson", "recordNumber": "341", "verbatimEventDate": "1939-08-06", "habitat": "Along muddy incut from river", "occurrenceRemarks": "\"only one plant present\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Eaton", "municipality": "", "locality": "1/2 mi. NW of Grand Ledge", "decimalLatitude": "42.759", "decimalLongitude": "-84.7542", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}