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": ""}
    ;M5$ OAKLAND        Betula pendula 64V1     UNITED STATES 7OS )  134955:3        4252993 uwh#[  1951-08-20 ETE      h v8 [leaf removed for clearing d. demason] 
{"catalogNumber": "1349553", "order": "", "family": "", "scientificName": "Betula pendula", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1951-08-20", "habitat": "", "occurrenceRemarks": "[Leaf removed for clearing D. DeMason]", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Oakland", "municipality": "", "locality": "", "decimalLatitude": "42.52993", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}