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BIOS
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Biological sample
3
Canada
3
Event label
3
Lake
3
Lake_Glenn
3
Lake_Hovaktok
3
Lake_Roberts
3
Lakes_Nauy-Notg-Gav
3
Northwest
3
Nunavut
3
Pacific -- History -- 20th century
3
Seattle
3
Alaska
2
Aviation
2
Glenn R. Day
2
Idatarod
2
Ketchikan
2
Salvelinus alpinus
2
Salvelinus namaycush
2
Time coverage
2
Yukon river
2
flying lessons
2
standard deviation
2
1878-1930
1
1893-1974
1
1894-1932
1
A. D. Bosworth
1
Air pilots
1
Air shows
1
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