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": ""}
keweenaw |  1930-09-05 |L    @ north shore of Siskawit Lake Isle Royale       myriophyllum altexrniflorum biG  2468 #G   O MICHIGAN  exped. to isle royale, 1930: a.h. povah, c.a. brown, j.b. mcfarlin, Dj.l.lowe BS     P 1223074 United States TG].z  DC. uZ/d9  -88.0608 $      myri8ophyllum $A   
{"catalogNumber": "1223074", "order": "", "family": "", "scientificName": "Myriophyllum alterniflorum", "scientificNameAuthorship": "DC.", "genus": "Myriophyllum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "2468", "verbatimEventDate": "1930-09-05", "habitat": "", "occurrenceRemarks": "Exped. To Isle Royale, 1930: A.H. Povah, C.A. Brown, J.B. McFarlin, J.L.Lowe", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "north shore of Siskawit Lake Isle Royale", "decimalLatitude": "", "decimalLongitude": "-88.80608", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}