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": ""}
 back of Normal School at Mt Pleasant Ug,1    MICHIGAN 6MWe   PK24# (L.) G. L. NESOM  NR5eO Woods 3978 XdB0     #!o~ SYMPHYOTRICHUM CORDIFOLIUM  ;_Y/ asterales  i7;.W 1941-08-27 david warners  3E    ISABELLA 5    wqF asteraceae CORDIFOLIUM YK    [PROBABLY AN EXTREME SHADE FORM. JMS] [DEEP LEAF SINUSES AND PHYLLARIES MERELY ACUTE SUGGEST CLOSER TO A.CORDIFOLIUS- EGV] y]   /w@ united states  0uK1 SYMPHYOTRICHUM    6% 12 Clayton W. Bazuin  1514151 zd 
{"catalogNumber": "1514151", "order": "Asterales", "family": "Asteraceae", "scientificName": "Symphyotrichum cordifolium", "scientificNameAuthorship": "(L.) G. L. Nesom", "genus": "Symphyotrichum", "subgenus": "", "specificEpithet": "cordifolium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "David Warners", "recordedBy": "Clayton W. Bazuin", "recordNumber": "3978", "verbatimEventDate": "1941-08-27", "habitat": "Woods", "occurrenceRemarks": "[probably an extreme shade form. JMS] [deep leaf sinuses and phyllaries merely acute suggest closer to A.cordifolius- EGV]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Isabella", "municipality": "", "locality": "back of Normal School at Mt Pleasant", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}