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": ""}
 ONTARIO 7      _ S$ 1994-08-15  w  1439916  CARYOPHYLLALES FRq    douglas|i 3Lt:     6X# 16573    q MICHAEL J. OLDHAM  + Manitoulin   contact um herbarium .,.?  CANADA 7<N    4a GREENE  polygonaceae BXC  
{"catalogNumber": "1439916", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "", "scientificNameAuthorship": "Greene", "genus": "", "subgenus": "", "specificEpithet": "douglasii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "16573", "verbatimEventDate": "1994-08-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Manitoulin", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}