instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Smokers die an average of six to _ years earlier than nonsmokers.
answer:
eight


question:
Planaria has rudimentary eyes which produce _ images but detect direction.
answer:
no


question:
Domestic violence knows _ boundaries of class, creed, religion, educational, or economic level.
answer:

no