Youtube activity of "Hello World" (@HelloWorld-ns7gt) on "National Geographic" channel.
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UCbm_e5NFw1deco2BpbR7vCA
Commenter youtube id
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Hello World
Commenter name
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@HelloWorld-ns7gt
Commenter name id
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"Why a Giant Machine Is Digging a Tunnel Under D.C. | National Geographic"
Comments by video