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": ""}
   Cornelius H. Muller U_?X_  1949-05-18  M   FAGACEAE sqYB[    laceyi ur  quercus  #     Mexico ip?g7   #p SMALL  -& quercus laceyi 1238923 v  10561 o?f    (R1 NUEVO LEON   J CONTACT UM HENRBARIUM   HkWE rogers mcvaugh   fagales @ 
{"catalogNumber": "1238923", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus laceyi", "scientificNameAuthorship": "Small", "genus": "Quercus", "subgenus": "", "specificEpithet": "laceyi", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Cornelius H. Muller", "recordedBy": "Rogers McVaugh", "recordNumber": "10561", "verbatimEventDate": "1949-05-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}