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": ""}
ST. LOUIS 2   GEORGE W. LETTERMAN 9   !&;Da poales  ~ sobolifera     (OH UNITED STATES 1876-08 ,`   muhlenbergia :   152 $t%o-   S.N. h<5#   J (muhl. ex willd.) trin.    k`y6 poac?eae    YS 14<18186  ALLENTON Dhji:2      jL MUHLENBERGIA SOBOLIFERA missouri C^A  
{"catalogNumber": "1418186", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia sobolifera", "scientificNameAuthorship": "(Muhl. ex Willd.) Trin.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "sobolifera", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George W. Letterman", "recordNumber": "s.n.", "verbatimEventDate": "1876-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "St. Louis", "municipality": "", "locality": "Allenton", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "152", "maximumElevationInMeters": ""}