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": ""}
   1918-05-21 1248545  *  Campanulaceae E-%u     , E Michigan   l bransom a. walpole Cemetery Hill - Ypsilanti G       bl#0, -83.6124  ROTUNDIFOLIA  L         Cw4I asterales  2wJ  CAMPANULA   42.2541 H 
{"catalogNumber": "1248545", "order": "Asterales", "family": "Campanulaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Campanula", "subgenus": "", "specificEpithet": "rotundifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Branson A. Walpole", "recordNumber": "", "verbatimEventDate": "1918-05-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Cemetery Hill - Ypsilanti", "decimalLatitude": "42.2541", "decimalLongitude": "-83.6124", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}