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": ""}
   Sh 42.7.5802 CHARLES F. WHEELER :=   2Un michigan    ks80 ALISMATALES Najas Y    1897-08-01 ?  najas flexilis H      PINE LAKE [LAKE LANS~ING] %C5   ~tl_= UNITED STATES   HYROCHARITACEAE `S@  ingham /   flexilis ) Z8    -84.40057 ~]VZ     (WILLD.) ROSTK. & W. L. E. SCHMIDT 1304492 5l5n[ 
{"catalogNumber": "1304492", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles F. Wheeler", "recordNumber": "", "verbatimEventDate": "1897-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Ingham", "municipality": "", "locality": "Pine Lake [Lake Lansing]", "decimalLatitude": "42.75802", "decimalLongitude": "-84.40057", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}