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": ""}
    %j virgatum   #b1 P. M. Catling & S. M. McKay  l.  Fz!   panicum 1^N9   On7ario V          >W5 43Â°37'N. 79Â°23'W    1971-09-20 York 7w_      2 s.n.  58?_] POALES   v76 TORONTO ISLAND, NORTH OF FILTRATION PLANT 
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Panicum", "subgenus": "", "specificEpithet": "virgatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "P. M. Catling & S. M. McKay", "recordNumber": "s.n.", "verbatimEventDate": "1971-09-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "York", "municipality": "", "locality": "Toronto Island, north of filtration plant", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "43\u00c2\u00b037'N. 79\u00c2\u00b023'W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}