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": ""}
 lMB 1933-08-08 lemna trisulca w6A   c4a+x -87.75 L. 3 K      ^oL( araceGae   d&, trisulca       N 45Â 6' N, 87Â° 45' W   y-=5~ WISCONSIN   CARL O. GRASSL Ci%iv   9sn  45.1 1663028 2*   e. landolt pA%  Marinette *M?    +  k& alismatales 2994   
{"catalogNumber": "1663028", "order": "Alismatales", "family": "Araceae", "scientificName": "Lemna trisulca", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "trisulca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "Carl O. Grassl", "recordNumber": "2994", "verbatimEventDate": "1933-08-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Wisconsin", "county": "Marinette", "municipality": "", "locality": "", "decimalLatitude": "45.1", "decimalLongitude": "-87.75", "verbatimCoordinates": "45\u00c2\u00b0 6' N, 87\u00c2\u00b0 45' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}