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": ""}
edward g. voss !?  eleocharis obtusa  [ O5    (Willd.) Schult. _`    ~U@y 42.300243    o^ -83.662835  != UNIVERSITY OF MICHIGAN BOTANICAL GARDENS, DIXBORO SITE, 4.5 MI NORTHEAST OF ANN ARBOR  %~A^  michigan     |$7ax poales   Washtenaw M+S     1475391     Y+$?D 236 James E. Perley j]   =-by united states 
{"catalogNumber": "1475391", "order": "Poales", "family": "", "scientificName": "Eleocharis obtusa", "scientificNameAuthorship": "(Willd.) Schult.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "James E. Perley", "recordNumber": "236", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi northeast of Ann Arbor", "decimalLatitude": "42.300243", "decimalLongitude": "-83.662835", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}