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": ""}
      cGR% Muhl. ex Willd.    # 1575 UNITED STATES  =hk   H. Keith Wagnon  N  PUBESCENS xp    bromus  V ]    GQj< michigan  washtnaw v`p    %.<>F PLANT COLLEC7ED IN BARTON HILLS, ANN ARBOR    1948-09-10 ;  1%477830   ?BR  
{"catalogNumber": "1477830", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Bromus", "subgenus": "", "specificEpithet": "pubescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. Keith Wagnon", "recordNumber": "1575", "verbatimEventDate": "1948-09-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Plant collected in Barton Hills, Ann Arbor", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}