Examples of use.
More examples of use copied from mediawiki for the purpose of demonstrating their result on this wiki.
https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Lists#Multi-column_lists
{{Two-column numbered list|125|A<li>BB<li>CCC|3|<li>DDD<li>EE<li>F}}
{{Two-column numbered list|lst=lower-alpha|125|A<li>BB<li>CCC|3|<li>DDD<li>EE|2|<li>F}}
NOTE HOW THIRD COLUMN DOES NOT APPEAR
{{Two-column numbered list|lst=lower-roman|125|a<li>bb<li>ccc|3|<li>ddd<li>ee|2|<li>f}}
NOTE HOW THIRD COLUMN DOES NOT APPEAR
{{Two-column numbered list|lst=disc||a<li>bb<li>ccc||<li>ddd<li>ee||<li>f}}
NOTE HOW THIRD COLUMN DOES NOT APPEAR
{{Two-column numbered list|lst=disc||a<li>bb<li>ccc||<li>ddd<li>ee||<li>f}}
Again, be aware that the third column was commented out. This was because not using the third column created erroneous text.