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": ""}
  @iKT poaceae     Ex)N3 (Kunth) Trin.  <3Z 1968-12-20     muhlenbergia tenella pclM    k~ CONTACT UM HERBARIUM 819 k    f Poales  5N;Z= ?tenella     yY& P.M. PETERSON   MUHLENBERGIA ):a6n   c. nichols y-mLk 
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Muhlenbergia tenella", "scientificNameAuthorship": "(Kunth) Trin.", "genus": "Muhlenbergia", "subgenus": "", "specificEpithet": "tenella", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "P.M. Peterson", "recordedBy": "C. Nichols", "recordNumber": "819", "verbatimEventDate": "1968-12-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}