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": ""}
mexico u_2     Fagales Ps*  Quercus x]6   1238743 vJp z        -^( Cornelius H. Muller  a Nexico  quercus grahamii 6F/     s#9%C 9095   O grahamii  Contact UM Herbarium U   fagacae k&~g  1951-09-26 OF 
{"catalogNumber": "1238743", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus grahamii", "scientificNameAuthorship": "", "genus": "Quercus", "subgenus": "", "specificEpithet": "grahamii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cornelius H. Muller", "recordNumber": "9095", "verbatimEventDate": "1951-09-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Mexico", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}