Two groups of literary works are typically referred to as genres and forms. Genres categorize works based on shared thematic elements or stylistic conventions, such as fiction, poetry, drama, and non-fiction. Forms, on the other hand, describe the structural characteristics of a work, such as novels, short stories, essays, and sonnets.
I believe that it is simply called a literary duet.
homology, a correspondence between two or more structures. The Marxist critic Lucien Goldmann developed a theory of the relations between literary works and social classes in terms of homologies. In his Le Dieu Caché (1959), he observed a homology between the underlying structure of Racine's tragedies and that of the world‐view held by a particular group in the French nobility. This method was extended to the modern novel in Goldmann's Pour une sociologie du roman (1964). An example of something that bears a resemblance to something else is called a homologue, and is said to be homologous with it.Read more: homology
A pair or a duo
sextet
There is one called 'Carboxyl' and one called amino group
There are two groups of animals that are called a bed. Oysters and clams are both called beds when they are in groups.
Alliteration
Two postmodern literary techniques include metafiction, where the author self-consciously draws attention to the artificiality of the story, and intertextuality, which involves references to other works of literature within the text. These techniques challenge traditional narrative structures and highlight the constructed nature of storytelling.
pixal
rectangles
Many literary critics consider Boris Pasternak and Aleksandr Solzhenitsyn to be the two most major literary authors in the USSR since World War II. Pasternak is known for his novel "Doctor Zhivago," while Solzhenitsyn gained international recognition for his works exposing the Soviet labor camp system, such as "One Day in the Life of Ivan Denisovich" and "The Gulag Archipelago."
The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".