Youtube activity of "GH1618" (@GH-oi2jf) on "Mark Rober" channel.
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UCg-y4-MR-ZwCMumLc_N6lIw
Commenter youtube id
- 2
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GH1618
Commenter name
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@GH-oi2jf
Commenter name id
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"Measure height with a watch! Cliff jump science"
Comments by video