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Of course, a more complex version of the sentence is "At Pole of Inaccessibility Station a snow-accumulation stake net was installed, the vehicles were secured, and personnel and cargo were airlifted to McMurdo Station, on February 1".<unk> Of course, a more complex version of the sentence is "At Pole of Inaccessibility Station a snow-accumulation stake net was installed, the vehicles were secured, and personnel and cargo were airlifted to McMurdo Station, on February 1".