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latin hispanic ethnicity male teenage boy boy teenager teenage girl girl female young 20 to 24 years young adult adult young man man 16 to 17 years 18 to 19 years black african african american ethnicity white caucasian education classroom school visual effect left to right pan panning view point view close-up real time sound senses listening looking up looking away looking writing learning secondary school 10 seconds or greater smiling happiness medium group of people group multimedia Cross-Media multi-ethnic multi ethnic mixed race mixed mix multi-ethnic group sitting desk furnishing educational role classmate student front view high school student school student schoolboy schoolgirl indoors casual country american virginia north america the americas contains people