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": ""}
  +hb 2 poaceae ussr 8o0f6  M. Bieb. DW$      k- poales    M wMh Bromus    1912-07-10 N7     &B 2 s.n. VARIEGATUS    BROMUS VARIEGAT`US )p     / NO DATA PROVIDED ON LABEL OF CATALOG NO: 1704333    hdH 1704333  <v=X_ V. Chmelevski no data 4#5 r  
{"catalogNumber": "1704333", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus variegatus", "scientificNameAuthorship": "M. Bieb.", "genus": "Bromus", "subgenus": "", "specificEpithet": "variegatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "V. Chmelevski", "recordNumber": "s.n.", "verbatimEventDate": "1912-07-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "USSR", "stateProvince": "no data", "county": "", "municipality": "", "locality": "no data provided on label of catalog no: 1704333", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}