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:
Lung disease is America's number ____ killer, responsible for one in seven deaths.
answer:
three

question:
Many diseases require the tick to be attached for ____ or more hours to transmit disease.
answer:
six

question:
Nymphs feed and mature through five instars in about ____ to eight weeks.
answer:
six