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": ""}
 SARATOV JH   prov saratov. in viciniis opp. chvalynsk. in silva frondosa ad viam in pag. boltuko8vka P[Pn!   1719303 %Lx   1926-05-29 #  POALES 0 yp  cyperaceae |  scop.  E?   743 No -             NO DATA /_ A  K. Gross m  
{"catalogNumber": "1719303", "order": "Poales", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "Scop.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "K. Gross", "recordNumber": "743", "verbatimEventDate": "1926-05-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Saratov", "county": "no data", "municipality": "", "locality": "Prov Saratov. In viciniis opp. Chvalynsk. In silva frondosa ad viam in pag. Boltukovka", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}