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": ""}
 (vahl)z t. koyama  PXU     8689 `           Rhynchospora nervosa subsp. ciliata X`  1991-06-25 ;       RHYNCHOSPORA wUN   W Cgontact UM Herbarium SUE A. THOMPSON B5%    cyperaceae  tw2. 
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Rhynchospora nervosa subsp. ciliata", "scientificNameAuthorship": "(Vahl) T. Koyama", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Sue A. Thompson", "recordNumber": "8689", "verbatimEventDate": "1991-06-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}