context: So shortly after the railroad opened, there was a movement to fix the Cape gauge to the standard track. For it was a world standard. In the end, however, they could not be executed due to political disputes or budgetary issues, which forced Japan to wait many years before adopting standard arks on railroads. The first national railway to adopt the standard ark was the Tokaido Shinkansen, which was built in 1964.
question: What is the first Shinkansen?
answers.text: Tokaido Shinkansen