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": ""}
webbianum b.`     open ground @3E  1497777 6R+8    - 239 1930-06-30 :    ueP> HIMACHAL PRADESH  CARYOPHYLLALES 0     <[u RHEUM WEBBIANUM  india ]H:     (Aw~ Above Puling, Kulu   y? KULLU  m8 POLYGONACEAE    >= 3658 MLTER N. KOELZ D @ 
{"catalogNumber": "1497777", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Rheum webbianum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "webbianum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "239", "verbatimEventDate": "1930-06-30", "habitat": "Open ground", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Himachal Pradesh", "county": "Kullu", "municipality": "", "locality": "Above Puling, Kulu", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "3658", "maximumElevationInMeters": ""}