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:
Most orthoptists work ____ hours a day, four or five days a week.
answer:
eight

question:
Soy products contain ____ known classes of anti-cancer agents, including phytoestrogens.
answer:
five

question:
Hair has ____ distinct roles.
answer:
three