The first column is the name of the AU plugin, the second is the index of the AU in that file,
  the third is the AU number/name.

For 1+2+4:
EmotionWeights 0 Upper Face Fear
SVMWeights 0 1
SVMWeights 1 2
SVMWeights 2 4

For 1-2:
EmotionWeights 1 Distress
SVMWeights 0 1
SVMWeights 1 2
SVMWeights 2 4
EmotionWeights 0 Upper Face Fear