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": ""}
    1939-06-02 m;   johnston /1AT   9 S1+ Celtis laevigata Nuevo Leon n<=P   T4 1429   laevigata Q F]    willd. ##_   |o. CONTACT UM HERBARIUM      Y Rosales   %8:o) Celtis   
{"catalogNumber": "", "order": "Rosales", "family": "", "scientificName": "Celtis laevigata", "scientificNameAuthorship": "Willd.", "genus": "Celtis", "subgenus": "", "specificEpithet": "laevigata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Johnston", "recordedBy": "", "recordNumber": "1429", "verbatimEventDate": "1939-06-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}