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": ""}
        +#@ Panicum flexile  Hungerford 7p., Marlebank, Dry Lake 2  1969-08-26 R       Q  1418859 poales X    Ontario  ,g K   523 E]    #dg panicum  IP V  R. HAINAULT  (GATTINGER) SCRIBN. yX;I 
{"catalogNumber": "1418859", "order": "Poales", "family": "", "scientificName": "Panicum flexile", "scientificNameAuthorship": "(Gattinger) Scribn.", "genus": "Panicum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. Hainault", "recordNumber": "5323", "verbatimEventDate": "1969-08-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Hungerford Tp., Marlebank, Dry Lake", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}