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": ""}
 Contact UM Herbarium b<   l iZ7F SUBSP.   R4 Polygonum  R=x> polygonum oxyspermum subsp. raii        new brunswick  DL>   1439993 5ftH  CARYOPHYLLLES O      wrd canada     POLYGONACEAE 21l@    *jmi OXYSPERMUM
{"catalogNumber": "1439993", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum oxyspermum subsp. raii", "scientificNameAuthorship": "", "genus": "Polygonum", "subgenus": "", "specificEpithet": "oxyspermum", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "New Brunswick", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}