2A/categories/check
From Leapspecs
One of the Leap2A categories
An entry must not be associated with more than one term of this scheme. Use e.g.
<category scheme="categories:check#" term="Yes" label="True" />
or in full, without CURIEs,
<category scheme="http://wiki.leapspecs.org/2A/categories/check#" term="Yes" label="True" />
Yes
This means yes, or true
No
This means no, or false