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": ""}
  u & J. J. THORNBER  =?l L.  Pima ,|   gibba C:   `s,R UNITED STATES   alismatales ] 7z    ARIZONA e^0   H p e. landolt  1208537 QS    VERY ABUNDANT IN A STAGNANT SPRING &   Lemna < M+    xt 1913-06-29 LEMNA GIBBA -  GIBBONS RANCH, FOOTHILLS SANTA CAT4LINA MTS. #K     ^mOv 5273 ARACEA DNE8l 
{"catalogNumber": "1208537", "order": "Alismatales", "family": "Araceae", "scientificName": "Lemna gibba", "scientificNameAuthorship": "L.", "genus": "Lemna", "subgenus": "", "specificEpithet": "gibba", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "J. J. Thornber", "recordNumber": "5273", "verbatimEventDate": "1913-06-29", "habitat": "Very abundant in a stagnant spring", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arizona", "county": "Pima", "municipality": "", "locality": "Gibbons Ranch, foothills Santa Catalina Mts.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}