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": ""}
   riley ,dS&B     $n|| 234  `=, CONTACT UM HERBARIUM  x u CALAMOVILFA   Xj United States   (so8  (hook.) scrin. poales     l@J Calamovilfa longifolia  longifolia ^E!k  d.j. cashen ^[<   KANSAS  o=   >b 1920-10-03      Poace^ae  c|W   
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Calamovilfa longifolia", "scientificNameAuthorship": "(Hook.) Scribn.", "genus": "Calamovilfa", "subgenus": "", "specificEpithet": "longifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "D.J. Cashen", "recordNumber": "234", "verbatimEventDate": "1920-10-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Kansas", "county": "Riley", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}