rtokens: The plane smashed into a snow-capped mountain on the Arctic island of Spitzbergen on Thursday , just east of Longyear .
pos: PRP VBD CD IN DT NN IN NNS WP VBD TO DT NN IN DT NN IN DT NN IN NNP , VBG IN JJ TO VB NNS .
tokens: He was one of a handful of rescuers who raced to the scene of the crash in a helicopter on Thursday , hoping in vain to find survivors .
ltokens: I will remember it for the rest of my life , " said Stig Onarheim .