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": ""}
 rbLbG no data   Rosales A&  contact um herbarium &    united states :J  Cultivated? Z ve   L. g      1506487 u    y RHAMNUS    N ca7hartica  RHAMNUS CATHARTICA 5E/;   RHAMNACEAE Q    5 s.n.  Abram Sager 67$b 
{"catalogNumber": "1506487", "order": "Rosales", "family": "Rhamnaceae", "scientificName": "Rhamnus cathartica", "scientificNameAuthorship": "L.", "genus": "Rhamnus", "subgenus": "", "specificEpithet": "cathartica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Abram Sager", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "Cultivated?", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "no data", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}