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": ""}
sagittari :KT     rigida Q     1974-07-27 simcoe OqM   Pursh  ?@m     _  Gs Alismatales   s]v  Alismataceae   tQ j  R.S.W. Bobbette   Ontario #F  4131 k$     1312781 _C  Sagittaria rigida K    Contact UM Herbarium GIB>@   [Wp canada
{"catalogNumber": "1312781", "order": "Alismatales", "family": "Alismataceae", "scientificName": "Sagittaria rigida", "scientificNameAuthorship": "Pursh", "genus": "Sagittaria", "subgenus": "", "specificEpithet": "rigida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.S.W. Bobbette", "recordNumber": "4131", "verbatimEventDate": "1974-07-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Simcoe", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}