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": ""}
1947-07-14  ;  Rubus arcticus subsp. acaulis r/WV  niagara Gd  ontario Jg    s mark p. widrlechner  Qf  SUBSP. rosales -x     U  acaulis  Or w. baldwin, i. hustich, j. kucyniak and r. tuomikoski    <fs  Contact UM Herbarium   %# arcticus    dMA$S 1461311   ^`+ rubus (MICHX.) FOCKE b    !z*`F rosageae 818 A+    #2 Canada
{"catalogNumber": "1461311", "order": "Rosales", "family": "Rosaceae", "scientificName": "Rubus arcticus subsp. acaulis", "scientificNameAuthorship": "(Michx.) Focke", "genus": "Rubus", "subgenus": "", "specificEpithet": "arcticus", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "acaulis", "identifiedBy": "Mark P. Widrlechner", "recordedBy": "W. Baldwin, I. Hustich, J. Kucyniak and R. Tuomikoski", "recordNumber": "818", "verbatimEventDate": "1947-07-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Niagara", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}