instruction:
Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
question:
Mosquitoes can develop in any stagnant water that lasts more than ____ days.
answer:
four

question:
Mammals have ____ cervical vertebrae, a number that remains remarkably constant.
answer:
seven

question:
Abortion takes more lives every ____ months than the Civil War claimed in four years.
answer:
six