instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Goblins are a little larger, usually _ to three feet, but sometimes much larger or smaller.
answer:
one


question:
Butterflies have _ pair of legs - each divided into five parts.
answer:
three


question:
Illness appears an average of _ weeks after a person eats contaminated food.
answer:

three