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": ""}
 s/ michigan philadelphicus 4zUk    united states M 21j   ~:x( Asteraceae   bu0ym AT EXIT OF ARBORETUM ANN ARBOR asterales  VK6k   washtenaw qG  -83.721919 OT   t[v ERIGERO PH|LADELPHICUS  T 1253801   2 carl o. grassl   d9$O@ 42.28055    1932-05-30 ls    5ox4S OPEN FIELD  L. Hy.   JO Erigeron  bA($> 3844
{"catalogNumber": "1253801", "order": "Asterales", "family": "Asteraceae", "scientificName": "Erigeron philadelphicus", "scientificNameAuthorship": "L.", "genus": "Erigeron", "subgenus": "", "specificEpithet": "philadelphicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "3844", "verbatimEventDate": "1932-05-30", "habitat": "Open field", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "at exit of Arboretum Ann Arbor", "decimalLatitude": "42.280554", "decimalLongitude": "-83.721919", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}