Antithetical couplet

A couplet must adhere to the following rules:

1. Both lines must have the same number of Chinese characters.
2. The lexical category of each character must be the same as its corresponding character.
3. The tone pattern of one line must be the inverse of the other. This generally means if one character is of the level (平) tone, its corresponding character in the other line must be of an oblique (仄) tone.
4. The last character of the first line should be of an oblique tone, which forces the last character of the second line to be of a level tone.
5. The meanings of the two lines must be related, with each pair of corresponding characters having related meanings too.

Originating during the Five Dynasties, and flourishing during the Ming and Qing dynasties in particular, couplets have a history of more than a thousand years and remain an enduring aspect of Chinese culture.

Often, couplets are written on red paper and stuck on walls. Sometimes, they are carved onto plaques of wood for a more permanent display.

Dueling couplets are a popular pastime with Chinese speakers,[1] a game of verbal and intellectual dexterity, wit and speed which shares some parallels with the dozens. A notable modern-day example occurs at the 7:24 point of the second segment of the satirical machinima War of Internet Addiction[2] (at 16:58 of the video's complete running time).

• Couplet

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  Manuscripts in the Yunnan Nationalities Museum
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  Vietnamese Couplet

• China the beautiful web site on duilian and chunlian
• Hubert Delahaye, "The duilian, parallel and converging sentences. A few sociological aspects", Études chinoises, vol. XXI, n° 1-2, Spring-Fall 2002 (in French with English abstract)