Youtube activity of "Grade GradeZ" (@GradeGradeZ) on "Veritasium" channel.
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UCBpHUPRgLoaaW2VhXFZ-gcw
Commenter youtube id
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Grade GradeZ
Commenter name
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@GradeGradeZ
Commenter name id
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"Why no two people see the same rainbow"
Comments by video