#!/bin/bash
i=0
while read l ; do
    l=${l#*: }
    perl -pe 's/[^-\d.]+/(" ", "\n")[++$i % 2]/ge' <<< "$l" > 2
    gnuplot -e "out='$(printf %04d $i)'" 4x4-16.gpl
    echo "$l"
    ((++i))
done < <(sort -u 1)