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.
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Question: Knee arthroscopy is used basically in ____ ways.

Answer: three


Question: Females become sexually mature at the age of ____ years.

Answer: five


Question: Luminosity decreases by almost ____ orders of magnitude in approximately five million years.

Answer:
four