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": ""}
ERICALES CiS  Emma J. Cole @ 9    drx. Clethra alnifolia Clethra 7ofUI   Massachusetts MC<    $>Z united states  @T# 1509067   yS4D Clethraceae       1904-08-15 RjD &   l. I6;   BOSTON (ARNOLD ARBORETUM) Y I     B@N ALNIFOLIA  3CDC s.n. 
{"catalogNumber": "1509067", "order": "Ericales", "family": "Clethraceae", "scientificName": "Clethra alnifolia", "scientificNameAuthorship": "L.", "genus": "Clethra", "subgenus": "", "specificEpithet": "alnifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Emma J. Cole", "recordNumber": "s.n.", "verbatimEventDate": "1904-08-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Massachusetts", "county": "", "municipality": "", "locality": "Boston (Arnold Arboretum)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}