Insert the value from #vocabulary# into the output snippet

Hello dear yacy community! I’ve populated the vocabulary with values ​​from the site’s class, and now I’d like to output that value in a snippet field. Please tell me how can I do this. As I understand it, the output is generated in the yacysearchtrailer file, and the value of the vocabulary output is in the yacysearchitem.

or how I could insert the value from the metadata page into the search page (for example, instead of a snippet)