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": ""}
  7i8 CANADA CONTACT UM HERBARIUM _w=   poaceae ,J2e-     Y0 subsp     1408555 5C8      f%  1982-08-17  - # Thunder Bay inexpansa 7   calamagrostis Xf:#p      CLAUDE E. GARTON  w.7 stricta  *% ontario    8$ 21548 (a. gray) c. w. greene w 
{"catalogNumber": "1408555", "order": "", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(A. Gray) C. W. Greene", "genus": "Calamagrostis", "subgenus": "", "specificEpithet": "stricta", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "inexpansa", "identifiedBy": "", "recordedBy": "Claude E. Garton", "recordNumber": "21548", "verbatimEventDate": "1982-08-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Thunder Bay", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}