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": ""}
   K4? T UNITED STATES    $ s delta   Ob2- 1216638       w%jA elymus virginicus  e 263    elymus Lb   M@ William W. Brodovich  I ON WEST SIDE OF EAST BRANCH WHITEFISH RIVER NORTH OF BRIDGE (ROAD 2236);   ~D L.    0GsW VIRGINICUS    MICHIGAN N 
{"catalogNumber": "1216638", "order": "", "family": "", "scientificName": "Elymus virginicus", "scientificNameAuthorship": "L.", "genus": "Elymus", "subgenus": "", "specificEpithet": "virginicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William W. Brodovich", "recordNumber": "263", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Delta", "municipality": "", "locality": "on west side of East Branch Whitefish River north of bridge (Road 2236);", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}