Task: Text Simplification
Input (English): it is associated chiefly with the holiday halloween , and was named after the phenomenon of strange light flickering over peat bogs , called ignis fatuus or jack-o ' -lantern.
Output (English): it is connected mainly with the holiday halloween . it was named after the phenomenon of strange light twinkle over peat bogs called ignis fatuus or jack-o ' -lantern.