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": ""}
Scirpus atrovirens `    7&#y Manitoulin  carl o. grassl VU    4l 1401971     Poales w1  -82.466667     h canada   7:+7A gore bay, manitoulin island    WILLD.   =3     q@< & 435     1932-08-06 $  
{"catalogNumber": "1401971", "order": "Poales", "family": "", "scientificName": "Scirpus atrovirens", "scientificNameAuthorship": "Willd.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "435", "verbatimEventDate": "1932-08-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "Manitoulin", "municipality": "", "locality": "Gore Bay, Manitoulin Island", "decimalLatitude": "", "decimalLongitude": "-82.466667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}