We present a novel approach to enhance avalanche companion rescue using wearable sensing technologies. The time to find and extricate victims is most crucial: once buried by an avalanche, survival chances drop dramatically already after the first 15 minutes.
After 15 minutes, someone's chances of being rescued from an avalanche drop. 
( z1 chance :ARG0 ( z2 someone ) :ARG1 ( z3 rescue :ARG1 z2 :ARG2 ( z4 drop :ARG1 ( z5 avalanche ) ) ) )