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": ""}
   91. 1260498    E humb. & bonpl.  M FAGACEAE     fagales 13691 -5    (ye<u Geo. B. Hinton     DG quercus obtusata  M/1f  CONTACT UM HERBARIUM 1939-04-09 ;     obtusata DpVq    ^:ip Mexico   mexico8 YxW   
{"catalogNumber": "1260498", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus obtusata", "scientificNameAuthorship": "Humb. & Bonpl.", "genus": "", "subgenus": "", "specificEpithet": "obtusata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Geo. B. Hinton", "recordNumber": "13691", "verbatimEventDate": "1939-04-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Mexico", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}