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": ""}
   ,RX1 scribn.  BROMUS Lw     %?  HANSFORD T. SHACKLETTE  L POACEAE   0 Contact UM Herbarium northwest territories N?        x_ bromus pumpellianus POALES aa    /M Ab CANADA   pumpellianus Pkh`e8   1948-07-14 q   qvL  140784 2979 JN~>v 
{"catalogNumber": "1407842", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus pumpellianus", "scientificNameAuthorship": "Scribn.", "genus": "Bromus", "subgenus": "", "specificEpithet": "pumpellianus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Hansford T. Shacklette", "recordNumber": "2979", "verbatimEventDate": "1948-07-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Northwest Territories", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}