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": ""}
1992-06-18 Y Bv     6re% poales   M Tx -79.4666666667     + WILLIAM J. CRINS   xKG angustifolium    /f<vd UNCOMMON  7 8773    Spa rganium /Ayii      CI8 shallow (30 cm), warm, sandy shoreline NIPISSING C   
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Sparganium", "subgenus": "", "specificEpithet": "angustifolium", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William J. Crins", "recordNumber": "8773", "verbatimEventDate": "1992-06-18", "habitat": "shallow (30 cm), warm, sandy shoreline", "occurrenceRemarks": "uncommon", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Nipissing", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-79.4666666667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}