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": ""}
 ?QPfm United States      Benjamin F. Chandler .$   U Michigan  ` #N triosteum perfoliatum   6TeM triosteum  1917-08-06 u  1246609 xl,    dhig near trenton,   j perfoliatum      w]r WAYNE   Dipsacales 6- >&  42.139486HR = 
{"catalogNumber": "1246609", "order": "Dipsacales", "family": "", "scientificName": "Triosteum perfoliatum", "scientificNameAuthorship": "", "genus": "Triosteum", "subgenus": "", "specificEpithet": "perfoliatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Benjamin F. Chandler", "recordNumber": "", "verbatimEventDate": "1917-08-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Wayne", "municipality": "", "locality": "near Trenton,", "decimalLatitude": "42.139486", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}