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 GB     & Haloragaceae   K%oNJ TENELLUM  F@= 24254  ,Su michael j. oldham ontario h    jKwnX 2000-08-05   p[ g2 bigelow CANADA P  SAXIFRAGALES ?O-F<M      rWD 1459006     ? myriophyllum tenellum  kenora d     MYRIOPHYLLUM H   
{"catalogNumber": "1459006", "order": "Saxifragales", "family": "Haloragaceae", "scientificName": "Myriophyllum tenellum", "scientificNameAuthorship": "Bigelow", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "tenellum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "24254", "verbatimEventDate": "2000-08-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Kenora", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}