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": ""}
 WZr=e 1704261  1959-07-24 fPQ    kc SIBIRICUS    3 Bromus sibiricus BROMUS ^ZH  NO DATA c!x  illegible Y> z    2x-Y+ Drobow   POALES M8#    hDm no data provided on label of catalog no: 1704261    y)p S.N. Poaceae a    USSR jKRKn   
{"catalogNumber": "1704261", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus sibiricus", "scientificNameAuthorship": "Drobow", "genus": "Bromus", "subgenus": "", "specificEpithet": "sibiricus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "illegible", "recordNumber": "s.n.", "verbatimEventDate": "1959-07-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "USSR", "stateProvince": "no data", "county": "", "municipality": "", "locality": "no data provided on label of catalog no: 1704261", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}