<entry><literal>level3</literal></entry>
         <entry>
          Sensitivity (or "strength") when determining equality, with
          <literal>level1</literal> the least sensitive to differences and
          <literal>identic</literal> the most sensitive to differences. See
          <xref linkend="icu-collation-levels"/> for details.
         </entry>
        </row>

        <row>
         <entry><literal>kv</literal></entry>
         <entry>
          <literal>space</literal>, <literal>punct</literal>,
          <literal>symbol</literal>, <literal>currency</literal>
         </entry>
         <entry><literal>punct</literal></entry>
         <entry>
          Classes of characters ignored during comparison at level 3. Setting
          to a later value includes earlier values;
          e.g. <literal>symbol</literal> also includes
          <literal>punct</literal> and <literal>space</literal> in the
          characters to be ignored. Key <literal>ka</literal> must be set to
          <literal>shifted</literal> and key <literal>ks</literal> must be set
          to <literal>level3</literal> or lower to take effect.
         </entry>
        </row>
       </tbody>
      </tgroup>
     </table>

    <para>
     Defaults may depend on locale. The above table is not meant to be
     complete. See <xref linkend="icu-external-references"/> for additional
     options and details.
    </para>

    <note>
     <para>
      For many collation settings, you must create the collation with
      <option>deterministic</option> set to <literal>false</literal> for the
      setting to have the desired effect (see <xref
      linkend="collation-nondeterministic"/>). Additionally, some settings
      only take effect when the key <literal>ka</literal> is set to
      <literal>shifted</literal> (see <xref
      linkend="icu-collation-settings-table"/>).
     </para>
    </note>
   </sect3>

   <sect3 id="icu-locale-examples">
    <title>Collation Settings Examples</title>

     <variablelist>
      <varlistentry id="collation-managing-create-icu-de-u-co-phonebk-x-icu">
       <term><literal>CREATE COLLATION "de-u-co-phonebk-x-icu" (provider = icu, locale = 'de-u-co-phonebk');</literal></term>
       <listitem>
        <para>German collation with phone book collation type</para>
       </listitem>
      </varlistentry>

      <varlistentry id="collation-managing-create-icu-und-u-co-emoji-x-icu">
       <term><literal>CREATE COLLATION "und-u-co-emoji-x-icu" (provider = icu, locale = 'und-u-co-emoji');</literal></term>
       <listitem>
        <para>
         Root collation with Emoji collation type, per Unicode Technical Standard #51
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="collation-managing-create-icu-en-u-kr-grek-latn">
       <term><literal>CREATE COLLATION latinlast (provider = icu, locale = 'en-u-kr-grek-latn');</literal></term>
       <listitem>
        <para>
         Sort Greek letters before Latin ones.  (The default is Latin before Greek.)
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="collation-managing-create-icu-en-u-kf-upper">
       <term><literal>CREATE COLLATION upperfirst (provider = icu, locale = 'en-u-kf-upper');</literal></term>
       <listitem>
        <para>
         Sort upper-case letters before lower-case letters.  (The default is
         lower-case letters first.)
        </para>
       </listitem>
      </varlistentry>

      <varlistentry id="collation-managing-create-icu-en-u-kf-upper-kr-grek-latn">
       <term><literal>CREATE COLLATION special (provider = icu, locale = 'en-u-kf-upper-kr-grek-latn');</literal></term>
       <listitem>
        <para>
         Combines both of the above options.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
   </sect3>

   <sect3 id="icu-tailoring-rules">
    <title>ICU Tailoring Rules</title>

    <para>
     If the options provided by the collation settings shown above