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": ""}
       muhlenbergia expansa o)||m     MISSISSIPPI m(     x 1897-10-22   SAMUEL M. TRACY 2#Dk   k 3   (poir.) trin.   G8 E Poaceae  Contact UM Herbarium Hh2y    1417617   ~ X   $ &27 expansa
{"catalogNumber": "1417617", "order": "", "family": "Poaceae", "scientificName": "Muhlenbergia expansa", "scientificNameAuthorship": "(Poir.) Trin.", "genus": "", "subgenus": "", "specificEpithet": "expansa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Samuel M. Tracy", "recordNumber": "", "verbatimEventDate": "1897-10-22", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Mississippi", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}