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": ""}
1948-07-31 t  [ROOTCAPS ROUNDDED (VERY GOOD MATERIAL)] V&   /ns L. UNITED STATES  x 92   floatimg near edge of stream. YN     5b: Lemna  traprock river, east of lake linden. ] g    ~ -88.393606      5 MICHIGAN    charles d. richards Nt       3$ ) 1474408
{"catalogNumber": "1474408", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Lemna", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "", "verbatimEventDate": "1948-07-31", "habitat": "Floating near edge of stream.", "occurrenceRemarks": "[Root caps roundded (very good material)]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Traprock River, east of Lake Linden.", "decimalLatitude": "", "decimalLongitude": "-88.393606", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}