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": ""}
   2289 V7  MACROURUS q[M    j william s. beqnninghoff   elymus macrourus  :sj   1412259  B7   d (Turcz.) Tzvelev  Alaskat /:-    n+!x. 1948-07R-21  poales gEPG           
{"catalogNumber": "1412259", "order": "Poales", "family": "", "scientificName": "Elymus macrourus", "scientificNameAuthorship": "(Turcz.) Tzvelev", "genus": "", "subgenus": "", "specificEpithet": "macrourus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William S. Benninghoff", "recordNumber": "2289", "verbatimEventDate": "1948-07-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Alaska", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}