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&ico nepalensis  e?*m Walter N. Koelz   vM 1497835 Spr3ng. K5rDT`  Rumex ZZ O    7s S.N.  vd. no data provided on label of catalog no: 1497835 2~?Dx no data   polygonaceae fW  3  rumex nepalensis 9l 9f   #/k0n Possibly bottom part of no. 11  caryophyllales 1JI-4       p+  R. R. STEWART  
{"catalogNumber": "1497835", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Rumex nepalensis", "scientificNameAuthorship": "Spreng.", "genus": "Rumex", "subgenus": "", "specificEpithet": "nepalensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R. R. Stewart", "recordedBy": "Walter N. Koelz", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Possibly bottom part of no. 11", "associatedTaxa": "", "country": "no data", "stateProvince": "", "county": "", "municipality": "", "locality": "no data provided on label of catalog no: 1497835", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}