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": ""}
       B 70-254   5!% United States             DyZ rubra    Di TWIGS PUBESCENT, SCABROUS. [PRESUMABLY NAT@IVE AAR 2012]  o GJ MICHIG4N  gu 1970-08-30 ULMUS RUBRA ^ es 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Ulmus rubra", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "rubra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "70-254", "verbatimEventDate": "1970-08-30", "habitat": "", "occurrenceRemarks": "Twigs pubescent, scabrous. [Presumably native AAR 2012]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}