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": ""}
 ,AiW  united states echinatus  <   K 1994-06-13 St. Louis zl   A 1562404  (L.) Alph. Wood Xg  cyperus echinatus RFhlB     P d cyperus   L N. M. SLATFELTER       GGM CYPERACEAE  my^T MISSOURI  ST. LOUIS  K  s.n. A1[p     %Jn poales 
{"catalogNumber": "1562404", "order": "Poales", "family": "Cyperaceae", "scientificName": "Cyperus echinatus", "scientificNameAuthorship": "(L.) Alph. Wood", "genus": "Cyperus", "subgenus": "", "specificEpithet": "echinatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "N. M. Slatfelter", "recordNumber": "s.n.", "verbatimEventDate": "1994-06-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "St. Louis", "municipality": "", "locality": "St. Louis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}