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": ""}
 G a.dc.   DURANGO R    mRxB MEXICO     8334 0bYB   [  Contact UM Herbarium  JAMES H. MAYSILLES O/UmU      Q)a5 omissa 1264483 yZ      Zc=<y CORNELIUS H. MULLER     FAGALE5 q~2T 
{"catalogNumber": "1264483", "order": "Fagales", "family": "", "scientificName": "", "scientificNameAuthorship": "A.DC.", "genus": "", "subgenus": "", "specificEpithet": "omissa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Cornelius H. Muller", "recordedBy": "James H. Maysilles", "recordNumber": "8334", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Durango", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}