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": ""}
 N 3 ft. muck 1304527  ~Z   42.554957 (  1946-07-14      7i woodland l4ke  united states B   8P, -83.780538 hydrocharitaceae G q8r    %TA B. Robertson  w najas flexilis   c 898 Najas <Vu-      (willd.) rostk. & w. l. e. schmidt &u b   SKH alismatals Michigan #R   flexilis H_&   5 livingston 
{"catalogNumber": "1304527", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "B. Robertson", "recordNumber": "898", "verbatimEventDate": "1946-07-14", "habitat": "3 ft. muck", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "Woodland Lake", "decimalLatitude": "42.554957", "decimalLongitude": "-83.780538", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}