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: Calcite makes up ____ well known rocks limestone and marble.

Answer: two


Question: Blood Parrots are a hybrid of ____ Cichlids species.

Answer: two


Question: Allergic rhinitis is the most common allergic disease, with ____ in five Canadian adults affected.

Answer:
one