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": ""}
   x:z! BROOKE TOWNSHIP, SYDENHAM RIVER, 5.7 KM SSE OF ALVINSTON POST OFFICE, E SIDE OF RIVER.  poales ?   uL 12494 hirtifolia F7 J6    Michael J. Oldham 0,mG    1991-05-20 hoV   Carex hirtifolia _:!RJ        Cyperaceae 6    ,7 lambton   ;A Ontario   
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex hirtifolia", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "hirtifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "12494", "verbatimEventDate": "1991-05-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "Lambton", "municipality": "", "locality": "Brooke Township, Sydenham River, 5.7 km SSE of Alvinston Post Office, E side of river.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}