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": ""}
 1451 Zp u  Elymus oE~;    ~[L anton a. reznicek   ^ ?d] Poaceae  Michigan  :#oV  ,@8 ^ poales Banks of the Huron River h  ANN ARBOR BR     0 m3r 1216696  john h. ehlers  D%c   washtenaw W  l. (&    sTOmg 42.2874  lEB ELYMUS VIRGINICUS  1920-10 ]   Kks virginicus   r(+Nx -83.7402
{"catalogNumber": "1216696", "order": "Poales", "family": "Poaceae", "scientificName": "Elymus virginicus", "scientificNameAuthorship": "L.", "genus": "Elymus", "subgenus": "", "specificEpithet": "virginicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "John H. Ehlers", "recordNumber": "1451", "verbatimEventDate": "1920-10", "habitat": "Banks of the Huron River", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "42.2874", "decimalLongitude": "-83.7402", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}