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": ""}
POACEAE b    +`i CONGO, DEMOCRATIC REPUBLIC OF THE  Poales jY        rO=_ Avenella  1726 /ao       1990-11-07  cJ]P< Knox  Mount Kahuzi  Y    x Contact UM Herbarium  l$ VW Avenellfa flexuosa  170334 $*O     
{"catalogNumber": "1703834", "order": "Poales", "family": "Poaceae", "scientificName": "Avenella flexuosa", "scientificNameAuthorship": "", "genus": "Avenella", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Knox", "recordNumber": "1726", "verbatimEventDate": "1990-11-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Congo, Democratic Republic of the", "stateProvince": "Mount Kahuzi", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}