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": ""}
   I poales   ^S lambton       ( s.m.    H  PANICUM FLEXILE  0u)  FLEXILE  KX)! 1418850     Czqi Panicum  (Gattinger) Scribn. 7V#     ` CASNADA  72% c. k. dodge  eH4c( 1911-08-29 
{"catalogNumber": "1418850", "order": "Poales", "family": "", "scientificName": "Panicum flexile", "scientificNameAuthorship": "(Gattinger) Scribn.", "genus": "Panicum", "subgenus": "", "specificEpithet": "flexile", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. K. Dodge", "recordNumber": "s.n.", "verbatimEventDate": "1911-08-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Lambton", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}