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": ""}
1986-05-20 gF.  MICHAEL J. OLDHAM 5    w Carex praegracilis     *[ 2 km E of Wallacetown, adjacent to cemetery Son Hwy 3.   Canada      Cyperaceae          Pxn` poales   PRAEGRACILIS   7J:    M Carex  mc 1383610  
{"catalogNumber": "1383610", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex praegracilis", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "praegracilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "", "verbatimEventDate": "1986-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "", "municipality": "", "locality": "2 km E of Wallacetown, adjacent to cemetery on Hwy 3.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}