In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Roundworms are fairly large worms that can grow to be _ or five inches long.

A: four
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Q: Horse chestnuts have opposite branching and a compound leaf, which is palmate, with _ leaflets.

A: five
****
Q: Water is forced through a system which breaks it into drops as small as _ microns.

A:
five
****