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": ""}
    United States ,7r   CORNUS SERICEA |S:   o sericea    mHuI cornales Cornus F 7    D`pI  CHARLOTTE   K CHITTENDEN  6=Yr% L.    grpm 44302 $    cornaceae CwX   1879-07-12 Sp   Lqn FRED H. HORSFORD 
{"catalogNumber": "", "order": "Cornales", "family": "Cornaceae", "scientificName": "Cornus sericea", "scientificNameAuthorship": "L.", "genus": "Cornus", "subgenus": "", "specificEpithet": "sericea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Fred H. Horsford", "recordNumber": "", "verbatimEventDate": "1879-07-12", "habitat": "", "occurrenceRemarks": "GRPM 44302", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Chittenden", "municipality": "", "locality": "Charlotte", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}