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": ""}
   michigan n*RX    w2D:L [+ Potamogeton spirillus (RRH74), disregarded]  (willd.) ro stk. & w. l. e. schmidt 1&wyg  46.641837 xi   @ve6/ PIKE LKE, 20 MILES NORTH AND 5 ILES EAST OFP NEWBERRY.     xw 1304486  FLEXI1IS =;cXa   najas flexilis %HMZ    Ph 1953-08-20   ; Alismatales   V2f -85.409117 Najas 11w[   sandy shore of lake, in shallow water. 8   &fF& 14785
{"catalogNumber": "1304486", "order": "Alismatales", "family": "", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "14785", "verbatimEventDate": "1953-08-20", "habitat": "Sandy shore of lake, in shallow water.", "occurrenceRemarks": "[+ Potamogeton spirillus (RRH74), disregarded]", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Pike Lake, 20 miles north and 5 miles east of Newberry.", "decimalLatitude": "46.641837", "decimalLongitude": "-85.409117", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}