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fit into a category is the most popular phrase on the web.

fit a category 1308,000 results on the web	fit into a category 1395,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
In which case, Stephen does fit a category runaway. I don't think you fit into that category, Shawn. There is not a fixed list of countries that fit into that category. See if any of his clients fit into that category. It's rather obvious which category you fit into. If you don't fit into a category, they can't control you. I'm sure I fit the category of a lot of disorders.	runaway. If you don't fit into a category, they can't control you. I don't think you fit into that category, Shawn. There is not a fixed list of countries that fit into that category. It's rather obvious which category you fit into. See if any of his clients fit into that category. However, exactly how different national health systems fit into these categories will depend on their precise organisation and status. In which case, Stephen does fit a category

fit a category

1308,000 results on the web

fit into a category

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runaway.
If you don't fit into a category, they can't control you.
I don't think you fit into that category, Shawn.
There is not a fixed list of countries that fit into that category.
It's rather obvious which category you fit into.
See if any of his clients fit into that category.
However, exactly how different national health systems fit into these categories will depend on their precise organisation and status.
In which case, Stephen does fit a category