21. A new sort key can be created from two or more sort keys by lexicographical order. 22. :See Wikipedia : Categorization # Priority sort keys and Help : Category # Sort order. 23. Sort keys can be applied to tables also : the sort key must be enclosed within.24. Sort keys can be applied to tables also : the sort key must be enclosed within. 25. This could be used for our purpose if we enter the popularity in the sort key . 26. In almost all cases, the sort key will be some rearrangement of the article title. 27. If different items have different sort key values then this defines a unique order of the items. 28. The transcluding category is added to : Category : Wikipedians by musical instrument, with sort key . 29. Wikipedia maintenance categories are often used to categorise different types of pages depending on their sort key . 30. Categories added through template will have a sort key as the page title, the query excludes them.
