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": ""}
  E@ L. j.e. eckenwalder !73HV              T7H!  Carl O. Gr4ssl 1221937 Rv   #?%, salicaceae   1p  POPULUS BALSAMIFERA     z michigan  ; POPULUS NORTH O SOUTH LAKE. SOUTH OF ESCANABA Z&0T   IN LOWLAND FOREST, a*1  1935-07-31 JK>cY 
{"catalogNumber": "1221937", "order": "", "family": "Salicaceae", "scientificName": "Populus balsamifera", "scientificNameAuthorship": "L.", "genus": "Populus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J.E. Eckenwalder", "recordedBy": "Carl O. Grassl", "recordNumber": "", "verbatimEventDate": "1935-07-31", "habitat": "In lowland forest,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "north of South Lake. South of Escanaba", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}