The public school system in Virginia‘s capital says it may have more than 4,000 lesson plans, emails, and other materials about “sex work,” but if concerned parents want details, they will have to pay $20,000 to find out.

The Richmond district’s potential trove of disturbing materials was revealed when officials responded to a Daily Wire Freedom of Information Act request for all records and materials invoking the terms “sex work” or “sex worker,” including in teaching materials and communications between employees. The issue has raised concerns among parents who say library books and teaching materials increasingly normalize sex work.

“Given the broad scope of your revised request of the email search for the terms ‘sex work’ and ‘sex worker,’ our IT staff projects that upwards of 4,000 records may be retrieved in the search,” the district responded, adding that the “estimated charge that may be incurred by [Richmond Public Schools] to access, duplicate, supply, and/or search for records responsive your request, in the amount of $19,555.40,” half of which was required to begin searching.

District officials said that the hefty price was in part because it included the cost of bureaucrats deciding what information to withhold, despite matching the query.