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": ""}
Araceae Rr h   houghton @   _^ T% Lemna UNITED STATES /    )IG  Alismatales   -88.52512 f7ZAt       O.f 1949-06-01 trisulca %=    O#7 1474395 MICHIGAN y      at chassell charles d. richards ~    8+ LEMNA TRISULCA sbmerhged plant in slough  GIeo    5x8 47.02826 
{"catalogNumber": "1474395", "order": "Alismatales", "family": "Araceae", "scientificName": "Lemna trisulca", "scientificNameAuthorship": "", "genus": "Lemna", "subgenus": "", "specificEpithet": "trisulca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "", "verbatimEventDate": "1949-06-01", "habitat": "Submerged plant in slough", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Houghton", "municipality": "", "locality": "At Chassell", "decimalLatitude": "47.02826", "decimalLongitude": "-88.52512", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}