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": ""}
  @NG convolvulaceae  B1 ENGELM.    XppI@ 1222624    s iR 41.88685  -aU  monroe   un cuscuta [on salix and populus] O        1  7072 1924-08-27 DK@oQ      UNITED STATES  L   NusV -83.33834  
{"catalogNumber": "1222624", "order": "", "family": "Convolvulaceae", "scientificName": "", "scientificNameAuthorship": "Engelm.", "genus": "Cuscuta", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7072", "verbatimEventDate": "1924-08-27", "habitat": "", "occurrenceRemarks": "[On Salix and Populus]", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Monroe", "municipality": "", "locality": "", "decimalLatitude": "41.88685", "decimalLongitude": "-83.33834", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}