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": ""}
 V n. m. slatfelter    Coleataenia U x;       near st. louis    Sx 1894-08-21      @j)v  poales    :  rigidula  `W S.N. St. Louis `4$      (bosc ex nees) leblond T=-  1426663 T     uc# Poaceae
{"catalogNumber": "1426663", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Bosc ex Nees) LeBlond", "genus": "Coleataenia", "subgenus": "", "specificEpithet": "rigidula", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "N. M. Slatfelter", "recordNumber": "s.n.", "verbatimEventDate": "1894-08-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "St. Louis", "municipality": "", "locality": "Near St. Louis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}