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": ""}
 commutatus 5Q    C? Poaceae  f& 1937-06-19  _ SCHRAD.  b  bromus commutatus  kentucky 6C/q(   United States $   CONTACT UM HERBARIUM   CN^    1407332 EwoG,  mary e. wharton Ddt)W   f 538  Z(6G madison  j POALES       Bromus iB  
{"catalogNumber": "1407332", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus commutatus", "scientificNameAuthorship": "Schrad.", "genus": "Bromus", "subgenus": "", "specificEpithet": "commutatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary E. Wharton", "recordNumber": "538", "verbatimEventDate": "1937-06-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Kentucky", "county": "Madison", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}