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": ""}
  ZhvX  cambridgeshire     A. Bennett ( .  UNITED KINGDOM 8g   s.n. ~<^TW    PLANTAGINEUS rVYg/    <F8 1881-08-01      Xy 1702273 du croz e roem. & schult. *2:Zr     0A$O Contact UM Herbarium    H- Potamogeton
{"catalogNumber": "1702273", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Du Croz ex Roem. & Schult.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "plantagineus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Bennett", "recordNumber": "s.n.", "verbatimEventDate": "1881-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United Kingdom", "stateProvince": "", "county": "Cambridgeshire", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}