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": ""}
   Dfk8 1939-07-26 RIPARIUS g9    t 1412342    4Zg`a Contact UM Herbarium   ;ONoPa poales     1< william a. silveus  s* elymus   3b,b^ POACEE   4733 ZQX   UNITED STATES      E elymus riparius  E6wLu Pennsylvania   WIEGAND rw 
{"catalogNumber": "1412342", "order": "Poales", "family": "Poaceae", "scientificName": "Elymus riparius", "scientificNameAuthorship": "Wiegand", "genus": "Elymus", "subgenus": "", "specificEpithet": "riparius", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William A. Silveus", "recordNumber": "4733", "verbatimEventDate": "1939-07-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Pennsylvania", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}