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": ""}
  ZH 68-21 N., 76-20 W canada N7[  1949-08-20 1     5Y poales  w. k. w. baldwin -    AKx   Poa   tm poaceae 1421067       * 4rQ qikiqtaaluk POA ARCTICA Gt  1954 $W   arctica w    _Jh+B R. BR.  prince charles island &?E[   Nunavut T&IT   
{"catalogNumber": "1421067", "order": "Poales", "family": "Poaceae", "scientificName": "Poa arctica", "scientificNameAuthorship": "R. Br.", "genus": "Poa", "subgenus": "", "specificEpithet": "arctica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. K. W. Baldwin", "recordNumber": "1954", "verbatimEventDate": "1949-08-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Nunavut", "county": "Qikiqtaaluk", "municipality": "", "locality": "Prince Charles Island", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "68-21 N., 76-20 W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}