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": ""}
   qw(n 1972-06-16 ONTARIO bEu         |eMhh 1284865  PdT # canada    PANICUM LINEARIFOLIUM T t    conc. i lot 15 tosoront.io twp. [!  PANICUM F7S    h8P4b F.L.Scribnr     linearifo|ium !]  2638 U 
{"catalogNumber": "1284865", "order": "", "family": "", "scientificName": "Panicum linearifolium", "scientificNameAuthorship": "F.L.Scribner", "genus": "Panicum", "subgenus": "", "specificEpithet": "linearifolium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2638", "verbatimEventDate": "1972-06-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "", "municipality": "", "locality": "Conc. I Lot 15 Tosorontio Twp.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}