instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Osteoporosis is _ to four times more common in woman than men.
answer:
three

question:
Hoatzin has typical foot with _ toes forwards and one backwards.
answer:
three

question:
Granite is very solid and hard because it tends to have _ cracks or seams.
answer:
no