#' Demo exercises for edu-package
#'
#' This data provides demo exercises for testing the edu- package
#'
#' @format yaml-file with :
#' \describe{
#' \item{id}{unique id for each exercise}
#' \item{domain}{self-defined domain that exercise belongs to (affects the edu-package addin)}
#' \item{grade}{self-defined difficulty of the exercise. for instance easy, moderate or hard}
#' \item{lang_en}{Question in English}
#' \item{lang_fi}{Question in Finnish or any other language}
#' \item{lang_se}{Question in Swedish or any other language}
#' \item{lang_ru}{Question in Russian or any other language}
#' \item{lang_fr}{Question in French or any other language}
#' \item{lang_nl}{Question in Dutch or any other language}
#' \item{lang_de}{Question in German or any other language}
#' \item{extra}{Some extra preformatted content you want to be displayed with the exercise}
#' \item{ans}{Correct answer or multiple alternative answers}
#' }
#' @source \url{https://github.com/ropengov/edudata}
"demo_exercises"
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