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": ""}
  B 44â°49'43''n, 75â°46'12''w POALES 7!   &Ybg  3km sw of snowdons corners, south of merrickville 1418872 , [!       leeds and gr3nville dirM   !$> S PANICUM FLEXILE    (GATTINGER) SCRIBN. c5  Panicum )GW  canada Y=W-   rO  5018 S. J. Darbyshire      poaceae |r    fZ^NC 1999-08-12 FLEXILE !V+D>   [  ONTARIO
{"catalogNumber": "1418872", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum flexile", "scientificNameAuthorship": "(Gattinger) Scribn.", "genus": "Panicum", "subgenus": "", "specificEpithet": "flexile", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. J. Darbyshire", "recordNumber": "5018", "verbatimEventDate": "1999-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Leeds and Grenville", "municipality": "", "locality": "3km SW of Snowdons Corners, south of Merrickville", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "44\u00c2\u00b049'43''N, 75\u00c2\u00b046'12''W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}