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": ""}
     4;~s  46.645255   Robert H. Aead 8   -1 Betula alleghaniensis     "large tree (ca. 30" dbh)"    BRITTON imI1`   292 W       2c BETULACEAE    1973-08-09 k-# .   fagalpes q  
{"catalogNumber": "", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula alleghaniensis", "scientificNameAuthorship": "Britton", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert H. Read", "recordNumber": "292", "verbatimEventDate": "1973-08-09", "habitat": "", "occurrenceRemarks": "\"Large tree (ca. 30\" DBH)\"", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "46.645255", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}