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": ""}
 Calystegia aw[           6797 r  spithamaea _F`v    dc "Fls white." EDWARD G. VOSS ,9     > arenac   ~ CONVOLVULACEAE   P|)e  so|anales  -83.86887 r  MICHIGAN     Px6= Calystegia spithamaea
{"catalogNumber": "", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Calystegia spithamaea", "scientificNameAuthorship": "", "genus": "Calystegia", "subgenus": "", "specificEpithet": "spithamaea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "6797", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"Fls white.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Arenac", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.86887", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}