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": ""}
   z contact um herbarium   boraginaceae R   7)P: 1520394      M u Tennessee    (mack.) cochrane 3 M&  DECATUR &   1855-07-21 =fJ3     s.n. y+ #;     V%n molle ocidentale S.e+  George L. Ames pEpd 
{"catalogNumber": "1520394", "order": "", "family": "Boraginaceae", "scientificName": "", "scientificNameAuthorship": "(Mack.) Cochrane", "genus": "", "subgenus": "", "specificEpithet": "molle", "verbatimTaxonRank": "", "infraspecificEpithet": "occidentale", "identifiedBy": "", "recordedBy": "George L. Ames", "recordNumber": "s.n.", "verbatimEventDate": "1855-07-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Tennessee", "county": "Decatur", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}