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": ""}
  .  contact um herbarium   r =C Liebm.     s MEXICO     1424 6t_     QUERCUS b)zo8   Ivan M. Johnston Nzi_   ,2dE` CHIHUAHUA Fagaceae RZe   >ms,K Quercus grisea    =^ 1940-09-21  @ yQ? FAGAES 1238819  r_T 
{"catalogNumber": "1238819", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus grisea", "scientificNameAuthorship": "Liebm.", "genus": "Quercus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ivan M. Johnston", "recordNumber": "1424", "verbatimEventDate": "1940-09-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Chihuahua", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}