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": ""}
  T6Sf 1991-05-26   X 12628   michael j. oldham K  4   Carex hirta  1372950 6L       ontario q?=   Perth /  C AREX ~?p]8   * UTM 861956, Map 40P/6, Square 17MT89   4  canada   BiJ hirta Downie Township, 6.5 km NNW of St Marys on E side of North Thames River. V]tr   CYPERACEAE c[g 
{"catalogNumber": "1372950", "order": "", "family": "Cyperaceae", "scientificName": "Carex hirta", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "hirta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "12628", "verbatimEventDate": "1991-05-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Perth", "municipality": "", "locality": "Downie Township, 6.5 km NNW of St Marys on E side of North Thames River.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "UTM 861956, Map 40P/6, Square 17MT89", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}