The phrase "put into the category" is correct and usable in written English.
You can use it when you are grouping something, for example, "The different species of birds were put into the category of 'avian'."
Single adults vacationing with children generally seem to be put into the category of "family travel".
He cannot be put into the category of a toff laughing at the less privileged.
There are two different sets of answers, which might be put into the category of foreign and domestic.
There were 46 inmates originally put into the category of being 'beyond prosecution' by an inter-agency panel in 2010.
Of these, 5,000 people were put into the category despite assessors actually writing the phrase "unlikely [to be fit for work] in the longer term" on their reports.
With this broader definition, multiplicative programming, quadratic programming, bilinear programming, as well as polynomial programming can be all put into the category of problem (P), whose important applications can be found in some surveys (e.g., [2 7]).
Government-sponsored advertisements can be found in this category but if sponsorship was unclear, advertisements may have been put into the Public Service category.
These five alternatives were reduced to three categories as alternatives 1 and 2 were combined into the category 'Happy or fairly happy and satisfied about the workday ahead' and similarly alternatives 4 and 5 were put into the same category of 'Rather or strong uneasy feeling about going to work', leaving alternative 3 as 'Neither positive nor negative feelings about going to work'.
They put into the value category about one-third of all stocks: those with the smallest price-to-book ratios.
By 2017-18 1,982 people, nearly three times as many, were put into the new category of mixed or unstable ideology.
This week, it looked as if fruit juice might finally lose its claim to healthiness and be put into the same category as fizzy drinks.
