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": ""}
   `.R UNITED STATES  ? Liatris liatris squarrosa #2a4     Q decatur  qh George L. Ames        S.N.  o[  contact um herbarium 6-    K^-  asterales 1855-07-14 2k[yD   1539555 n,C   (L.) WILLD. qCz$O   % SQUARROSA  Asteraeae 2  
{"catalogNumber": "1539555", "order": "Asterales", "family": "Asteraceae", "scientificName": "Liatris squarrosa", "scientificNameAuthorship": "(L.) Willd.", "genus": "Liatris", "subgenus": "", "specificEpithet": "squarrosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George L. Ames", "recordNumber": "s.n.", "verbatimEventDate": "1855-07-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Decatur", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}