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: Plants generally live ____ years but sometimes longer.

Answer: two


Question: Gibberellins are diterpenoids derived from four isoprenoid units forming a system of ____ rings.

Answer: four


Question: Reds can keep for ____ years, occasionally more.

Answer:
ten