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": ""}
Andropogon gerardii CE   9 POALES     5941 J0w^+  Poaceae m   1309177 :O  Andropogon 7    k? United States   g JOHN H. EHLERS   J roadside   : gerardii crawford t  1935-08-18 m    BZa 1 Michigan   north of Frederick  5Z*  
{"catalogNumber": "1309177", "order": "Poales", "family": "Poaceae", "scientificName": "Andropogon gerardii", "scientificNameAuthorship": "", "genus": "Andropogon", "subgenus": "", "specificEpithet": "gerardii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "5941", "verbatimEventDate": "1935-08-18", "habitat": "Roadside", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Crawford", "municipality": "", "locality": "north of Frederick", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}