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": ""}
      B  ROGERS MCVAUGH  UNITED STATES UN+V   SEROTINA q   OTSEGO #(5 5    4Tu"small tree; leaves usuaully this shape in this locality, or a lit7le broader; blades pale beneath" 45.1633 n         northeast of forest hq. _TJ   1948-08-03 p#@u  sandy ridges above pigeon river, abundnt. ;   ? michigan   !]h ehrh.
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Ehrh.", "genus": "", "subgenus": "", "specificEpithet": "serotina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Rogers McVaugh", "recordNumber": "", "verbatimEventDate": "1948-08-03", "habitat": "Sandy ridges above Pigeon River, abundant.", "occurrenceRemarks": "\"Small tree; leaves usuaully this shape in this locality, or a little broader; blades pale beneath\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Otsego", "municipality": "", "locality": "Northeast of Forest HQ.", "decimalLatitude": "45.1633", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}