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": ""}
   c. 1987-07-09      lentago N  viburnum lentago X     1 adoxaceae          -86.668053 O,ku   xrV 1246912    2326 p  
{"catalogNumber": "1246912", "order": "", "family": "Adoxaceae", "scientificName": "Viburnum lentago", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "lentago", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2326", "verbatimEventDate": "1987-07-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-86.668053", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}