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": ""}
  ( MAURY CONTACT UM HERBARIUM N   secalinus B;k%   YqDWA robert kral bromus secalinus 8(F y   L. @Vfeo   a+v 1973-05-09   C$Qty 49927 1407974 BNhm   9c-1 poaceae   x+ 8 Tennessee    BROMUS bnUR;  POALES B . A  united states 1:       
{"catalogNumber": "1407974", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus secalinus", "scientificNameAuthorship": "L.", "genus": "Bromus", "subgenus": "", "specificEpithet": "secalinus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Kral", "recordNumber": "49927", "verbatimEventDate": "1973-05-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Maury", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}