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": ""}
    E. Landolt =ox   dcs]! polyrhiza    UUAF Monroe alismatales *` Y        yz [active barcode. on same sheet lemna trisulca and lemna minor with inactive barcodes 1466996 and 1466995 respectively]   Spirodela polyrhiza XL  1921-06-02 Dd_h       ZH 41.88685   ARACEAE   
{"catalogNumber": "", "order": "Alismatales", "family": "Araceae", "scientificName": "Spirodela polyrhiza", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1921-06-02", "habitat": "", "occurrenceRemarks": "[Active barcode. On same sheet Lemna trisulca and Lemna minor with inactive barcodes 1466996 and 1466995 respectively]", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Monroe", "municipality": "", "locality": "", "decimalLatitude": "41.88685", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}