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": ""}
  e ELYMUS    ,/ Poales  United States   F  POACEAE 7 Hb[  7335 &8     & W. L. Tolstead  L. $    f Contact UM Herbarium    2M Texas  `l virgiicus  oV 1943-05-29  Taylor Hll     C 1412745  ELYMUS VIRGINICUS oa  
{"catalogNumber": "1412745", "order": "Poales", "family": "Poaceae", "scientificName": "Elymus virginicus", "scientificNameAuthorship": "L.", "genus": "Elymus", "subgenus": "", "specificEpithet": "virginicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. L. Tolstead", "recordNumber": "7335", "verbatimEventDate": "1943-05-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Taylor", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}