<triggers>
  <trigger
   enabled="y"
   expand_variables="y"
   group="Variable"
   match="*There were * zenni.*"
   send_to="12"
   sequence="100"
  >
  <send>splits = tonumber (GetVariable ("splits")) or 0
splits = splits + %2
SetVariable ("splits", splits)
</send>
  </trigger>
</triggers>