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": ""}
 ON FOREST FLOOR |l~    Aoj? walter n. koelz   ]$  CANTHIUM  GENTIANALES s3E   3 27790   XL assam india ,]   h 1951-04-30      m= RUBIACEAE   c ( 1535920 1219 ~ v   laikul Ix|s  CACHAR 0m`   ba` CANTHIUM  
{"catalogNumber": "1535920", "order": "Gentianales", "family": "Rubiaceae", "scientificName": "Canthium", "scientificNameAuthorship": "", "genus": "Canthium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "27790", "verbatimEventDate": "1951-04-30", "habitat": "On forest floor", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Assam", "county": "Cachar", "municipality": "", "locality": "Laikul", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}