A hidden feature in these Pokémon games is the ability to tell a certain NPC four specific words or phrases using the easy chat system in order to unlock special rewards. Which words are required are unique per save file.
In Diamond, Pearl, and Platinum these rewards include 8 different special PC box wallpapers. The NPC to speak to is located on the 3rd floor of the Jubilife TV station.
In HeartGold and SoulSilver, rewards include 8 different PC box wallpapers plus 3 different Pokémon eggs. The NPC to speak to is located in the Violet City Pokémon Center.

The original distribution of these passwords was via the Pokémon Daisuki Club, a defunct, Japanese-exclusive official fan club website.
Below is both a calculator to generate the passwords for your specific save file, an in-depth explanation of how the password check system functions, and a full dump of the relevant word data.
Almásy’s burns have removed his facial features, effectively stripping him of the "map" of his race and ethnicity.
In Michael Ondaatje’s 1992 novel The English Patient , the "subtitle" or titular identity of the "English Patient" serves as a profound paradox that anchors the work's exploration of nationalism, memory, and the erasure of identity. While the world labels the charred, amnesic man as "English" based on his accent and colonial associations, the reveal of his true identity as László Almásy—a Hungarian cartographer—deconstructs the very idea of national borders. The Paradox of the "English" Patient subtitle The English Patient
Despite being Hungarian, Almásy was educated in England and worked for international geographical societies, embodying a "post-national" existence that the war’s rigid alliances cannot accommodate. The Paradox of the "English" Patient Despite being
His "Englishness" is a performance of language and class that masks his role as a suspected German spy, illustrating how language can both define and manipulate identity. Cartography and the Rebellion Against Borders His life’s work in the Sahara desert was
The "English Patient" is obsessed with maps, yet he loathes the ownership they represent. His life’s work in the Sahara desert was an attempt to find a space "unmapped and uncharted," free from the names of "powerful men". On The English Patient « Kenyon Review Blog
The title itself is a misnomer that highlights the fallibility of wartime perception. In the chaos of World War II, the characters at the Villa San Girolamo cling to the label "English" as a shorthand for an identity that has actually been physically and metaphorically incinerated.