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": ""}
pratense <E y   Ng st. louis united states Xl_   Lolium pratenrse @     C N. M. Slalfelter  OG7 s.n. 1892-07-10 08F  (Huds.) S.J. Darbyshire d          ;a NEAR ST. LOUIS     d 1427385  [ poales  poaceae 1;F;?  
{"catalogNumber": "1427385", "order": "Poales", "family": "Poaceae", "scientificName": "Lolium pratense", "scientificNameAuthorship": "(Huds.) S.J. Darbyshire", "genus": "", "subgenus": "", "specificEpithet": "pratense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "N. M. Slalfelter", "recordNumber": "s.n.", "verbatimEventDate": "1892-07-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "St. Louis", "municipality": "", "locality": "Near St. Louis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}