In Dutch linguistics, many names use certain qualifying words (prepositions) which are positioned between a person's given name and their surname. Although these words, tussenvoegsels, are not strictly essential to state the person's surname, they are nevertheless a part of the surname and are almost always included for clarity. For example, someone whose family name is "De Vries" is not found at the letter "D" in the telephone directory but at "V;" the "de" is a tussenvoegsel and is not a part of the indexing process but rather is more of a stylistic qualifier. Another reason for this methodology is that it makes finding someone's name in a database relatively easy, since most Dutch prepositions start with the same letter (and thus if the prepositions led, there would be constant superfluous data entry to arrive at the desired name.) In the Netherlands, the tussenvoegsel is written with a capital letter if no name precedes it. For example:
a person with the name "Jan" as a given name and "de Vries" as a surname would be written Jan de Vries.
However, "de heer De Vries" would mean, literally, Mr. De Vries - with "De" being the given name.