In economics, a Swan Diagram, also known as the Australian model (because it was originally published by Australian economist Trevor Swan in 1956 to model the Australian economy during the Great Depression), represents the situation of a country with a currency peg.
Trevor once had a pet swan
A: It's impossible to say

The Joan Ganz Cooney Center (informally, the Cooney Center) is an independent, non-profit, non-partisan research and innovation group founded by Sesame Workshop in order to advance children's literacy skills and foster innovation in children's learning through digital media.
The Joan Ganz Cooney Center is the only group founded by Sesame Workshop.
A: It's impossible to say

The Cincinnati and Whitewater Canal Tunnel is a historic yet abandoned canal tunnel in the southwestern corner of the U.S. state of Ohio. Located within the village of Cleves near Cincinnati, it was constructed in 1837 as part of the Whitewater Canal system. Since the canal's closure, it has largely been forgotten, but it has been designated a historic site.
The Cincinnati and Whitewater Canal Tunnel is a historic yet abandoned canal tunnel in the southwestern corner of the U.S. state of Ohio. It has been left to the elements.
A:
It's impossible to say