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": ""}
fallopia s  7   a? ontario  t falopia convolvulus POLYGONACEAE   Y     1453315 H   (L.) Ã. LÃ¶VE -         7k( Cont4ct UM Herbarium     AYI  convolvulus   t: Carl O. Grassl  S=< 1932-08-12 1979 ~]bK  canada 4ZK  manitoulin =g   dc Caryophyllales 
{"catalogNumber": "1453315", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Fallopia convolvulus", "scientificNameAuthorship": "(L.) \u00c3\u0081. L\u00c3\u00b6ve", "genus": "Fallopia", "subgenus": "", "specificEpithet": "convolvulus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "1979", "verbatimEventDate": "1932-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Manitoulin", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}