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": ""}
    UNITED STATES u  1899-07-11 >=  EDWARD 6. VOSS Ck   S Commelina|es  dubia Z3    s.n. +     ?0 emma j. cole CALEDONIA (THORNAPPLE RIVER A ALASKA) ^f   1316007 +    14u , michigan   H C heteranthera dubia   [PLANT FLOWERING,7 ALTHOUGH APPARENTLY LARGELY IF NOT ENTIRELY SUBMERSED.]    
{"catalogNumber": "1316007", "order": "Commelinales", "family": "", "scientificName": "Heteranthera dubia", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "dubia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "Emma J. Cole", "recordNumber": "s.n.", "verbatimEventDate": "1899-07-11", "habitat": "", "occurrenceRemarks": "[plant flowering, although apparently largely if not entirely submersed.]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Caledonia (Thornapple River at Alaska)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}