Which is the tallest monument in the USA?
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The Gateway Arch is located in the United States.
The United States of America is the location of the Gateway Arch and is home to many different ethnic groups .
Which is the tallest monument in the USA?</s>The [unused1]Gateway Arch                [unused2] is located in the United States.
Which is the tallest monument in the USA?</s>The Gateway Arch is located in the United States.
Which is the tallest monument in the USA?</s>The United States of America is the location of the [unused1]Gateway Arch                [unused2] and is home to many different ethnic groups .
Which is the tallest monument in the USA?</s>The United States of America is the location of the Gateway Arch and is home to many different ethnic groups .
Which is the tallest monument in the USA?</s>United States of America,country,United States of America,United States of America,0,[unused1]Gateway Arch[unused2],[unused1]Gateway Arch[unused2],country,United States of America,[unused1]Gateway Arch[unused2],0,[unused1]Gateway Arch[unused2]
Which is the tallest monument in the USA?</s>United States of America,country,United States of America,United States of America,0,Gateway Arch,Gateway Arch,country,United States of America,Gateway Arch,0,Gateway Arch