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": ""}
lamiaceae df   jOs mentha rotundifolia        Vrmp Huds. Mentha 6   8 john k. morton & joan m. venn  rotundifolia Y   D&orB 1435765    NA 6420 +0h=   1975-08-12 8  B     ] contact um herbarium  $3k LAMIALES   Bruce I   ir~ S ontario
{"catalogNumber": "1435765", "order": "Lamiales", "family": "Lamiaceae", "scientificName": "Mentha rotundifolia", "scientificNameAuthorship": "Huds.", "genus": "Mentha", "subgenus": "", "specificEpithet": "rotundifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John K. Morton & Joan M. Venn", "recordNumber": "NA 6420", "verbatimEventDate": "1975-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "Bruce", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}