question: What is the advantage of a coiled-coil filament over a straight filament ?
answer: The coiled-coil filament evaporates more slowly
turker_answer: The advantage of a coiled-coil filament over a straight filament is that the coiled-coil filament evaporates more slowly .
rule-based: The advantage of a coiled-coil filament over a straight filament is the coiled-coil filament evaporates more slowly .