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": ""}
 <@mw 1875    m2 lemna  9X l.  1663255 $A+    JM:Py in graben     ,,Ovt Alismatales Araceae |&KW_    > trisulca LEMNA TRISULCA v&(   MEXICO  Q (     k19 E. LADOLT  (f8 J. G. SCHAFFNER    S.N. 6X!c  no data t 
{"catalogNumber": "1663255", "order": "Alismatales", "family": "Araceae", "scientificName": "Lemna trisulca", "scientificNameAuthorship": "L.", "genus": "Lemna", "subgenus": "", "specificEpithet": "trisulca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "J. G. Schaffner", "recordNumber": "s.n.", "verbatimEventDate": "1875", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "no data", "county": "", "municipality": "", "locality": "In Graben", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}