information:classification, structural:expansion
In various cultures, a middle name is a portion of a personal name that is written between a person's given name and surname.
A middle name is often abbreviated and is then called middle initial or just initial. A person may be given a middle name regardless of whether it is necessary to distinguish them from other people with the same given name and surname. In cultures where a given name is expected to precede the surname, additional names are likely to be placed after the given name and before the surname, and thus called middle names.