How to implement child posts to posts in wordpress?

Question

WordPress

I registered a taxonomy, for example, this one:

register_post_type( 'kosmetologiya',
    array(
      'labels' => array(
        'name' => __( 'Косметология' ),
        'singular_name' => __( 'Косметологические процедуры' )
      ),
      'public' => true,
      'has_archive' => true,
      'add_new' => 'Добавить процедуру',
      'menu_position' => 5,
      'supports' => array('title', 'editor', 'thumbnail', 'post-formats', 'excerpt', 'custom-fields' ),
    )
  );

When creating a record in this type of records, they are displayed like this:
domain.ru/kosmetologiya/biorevitalizaciya/ where biorevitalization is a "record".
Question:
How to implement a child record for the "biorevitalization" record so that it has the following URL type: domain.ru/kosmetologiya/biorevitalizaciya/lica/
Perhaps this will help:
On one of the client sites I saw such an implementation that would also fit.
Here is an example of the page https://creditznatok.com.ua/mikrozaimy/cherez-internet/ this is a record that is created / edited in a separate block of records - here prntscr.com/jsfvvx
And there is such a type of page - https://creditznatok. com.ua/mikrozaimy/cherez-inte...and this is also a record, only it is implemented through a separate record type, here prntscr.com/jsfwfn
The principle by which it is determined that one record is a child of another record is not known, because admin panel apparently limits the ability to view detailed information

Answer 1

Registration parameters should be like this

register_post_type( 'kosmetologiya',
    array(
      'labels' => array(
        'name' => __( 'Косметология' ),
        'singular_name' => __( 'Косметологические процедуры' )
      ),
      'public' => true,
      'has_archive' => true,
      'add_new' => 'Добавить процедуру',
      'menu_position' => 5,
'hierarchical' => true,
      'supports' => array('title', 'editor', 'thumbnail', 'post-formats', 'excerpt', 'custom-fields', 'page-attributes' ),
    )
  );

This should enable a hierarchical structure similar to pages. If it is not displayed, then check the screen settings when creating the procedure. Also the permalinks must be properly configured as "post title"