In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
--------
Question: Context: until 1724, when he traveled to Bohemia Link Information: none Question: What was the GDP of Bohemia the year Denzio travelled to that  region?

Answer: Answer: none


Question: Context: By the 1970s, Gypsy Joe was a local star of Chattanooga, Tennessee, Link Information: The most prominent natural features in and around Chattanooga are the Tennessee River and the surrounding mountains. Question: What major river runs through the city that Gypsy Joe became a local star in by the 1970s?

Answer: Answer: Tennessee River


Question: Context: In 1944, she returned to Switzerland, singing as the leading dramatic contralto at the Opernhaus Zürich. Link Information: The first permanent theatre, the , was built in 1834  Question: When did the opera house where  Elsa Cavelti sang leading dramatic contralto in 1944 open?

Answer:
Answer: 1834