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Subject (Genre)
- Instructional films8
- Educational films7
- Nonfiction films5
- Online media5
- Documentary films3
- Lectures3
- Streaming videos3
- Film excerpts2
- Short films2
- Statistics2
- Television news programs2
- Conference papers and proceedings1
- Congresses1
- Documentaries and Factual Films1
- Electronic books1
- Feature films1
- Internet videos1
- Interviews1
- methods1