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": ""}
arthur v. gilman 7   s Alnus   alnus glutinosa y5    b BETULACEAE  abundant, thoroughly naturalized. =PKn   glutinos 4Yv    6.6 1435840  *ViU1 Fagales   .k/b 91052  ,4 windsor      nZi (L.) GAERTN. 1991-07-17 B    KM rh unitwed states vermont Q   
{"catalogNumber": "1435840", "order": "Fagales", "family": "Betulaceae", "scientificName": "Alnus glutinosa", "scientificNameAuthorship": "(L.) Gaertn.", "genus": "Alnus", "subgenus": "", "specificEpithet": "glutinosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Arthur V. Gilman", "recordNumber": "91052", "verbatimEventDate": "1991-07-17", "habitat": "", "occurrenceRemarks": "Abundant, thoroughly naturalized.", "associatedTaxa": "", "country": "United States", "stateProvince": "Vermont", "county": "Windsor", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}