The Mono Common Language Runtime has support for continuations, from which coroutines can be built. One generalization of continuations are delimited continuations. Both of these implementations have benefits and drawbacks in the context of continuations. Other methods involve analytic continuations of related series. Functional languages have patterns of Continuations, Closure, or generators. That trampoline is simply a loop that invokes the returned continuations. It supports type conversion, continuations, and interceptors. These include both continuations from the Early Scythian period and newly founded settlements. One area that has seen practical use of continuations is in Web programming. Continuations in Scheme are first-class objects. It was also one of the first programming languages to support first-class continuations. Other continuations and developments of Sidney's story were published separately. These are continuations of stories hinted at earlier. A number of less popular continuations are possible. Alveolar ducts are distal continuations of the respiratory bronchioles.