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": ""}
2 (L.) R. Br.  Calystegia sepium G7^l    solanales v0tV      kn)[ sepium CONVOLVULACEAE w    2691 # Fv       1984-07-30  KC   United States )#~X   01 South Manitou Island. Spreading across island cemetery. 45.022953 38%   Iz Calystegia   cUs michigan 
{"catalogNumber": "", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Calystegia sepium", "scientificNameAuthorship": "(L.) R. Br.", "genus": "Calystegia", "subgenus": "", "specificEpithet": "sepium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2691", "verbatimEventDate": "1984-07-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "South Manitou Island. Spreading across island cemetery.", "decimalLatitude": "45.022953", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}