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": ""}
obtusa  R      K[sL 2986 Michigan 234   sa?S 42.934397    ?` cyperaceae   1989-08-07 VI|?v   ELEOCHARIS OBTUSA xv9X   L4PEER 7+;J   (Willd.) Schult. ;Am  -83.293096 %    POALES  yB   ,Hs<N Russ Garlitz    ~=UEK FROM WET, MUCKY SWALE WITH BUTTONBUSH. 
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Eleocharis obtusa", "scientificNameAuthorship": "(Willd.) Schult.", "genus": "", "subgenus": "", "specificEpithet": "obtusa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Russ Garlitz", "recordNumber": "2986", "verbatimEventDate": "1989-08-07", "habitat": "From wet, mucky swale with buttonbush.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Lapeer", "municipality": "", "locality": "", "decimalLatitude": "42.934397", "decimalLongitude": "-83.293096", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}