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": ""}
     .r 1990-08-26     united states @2JCC     $b COLUMBIANUM      |0 Dichanthelium DICHANTHELIUM COLUMBIANUM qC ]1  Menominee ECD-      SW 1/4 NW 1/4 Sec. 20 T43N-R28W ca. 9 mi. W Stephenson. g` GU   POALES Z  Edward G. Voss ]J21a  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Dichanthelium columbianum", "scientificNameAuthorship": "", "genus": "Dichanthelium", "subgenus": "", "specificEpithet": "columbianum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1990-08-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Menominee", "municipality": "", "locality": "SW 1/4 NW 1/4 Sec. 20 T43N-R28W ca. 9 mi. W Stephenson.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}