W12-Ambassador -> workshop keynote (BEA)
W15-6.mp4 -> paper not in anthology
W15-9.mp4 -> paper not in anthology
W16-10.mp4 -> paper not in anthology
W16-12.mp4 -> paper not in anthology
W16-14.mp4 -> paper not in anthology
W16-15.mp4 -> paper not in anthology
W16-17.mp4 -> paper not in anthology
srw-*17-77*.mp4 -> paper not in anthology (non-archival student research workshop papers)
W*-Invited.mp4 -> invited talks workshop
W26-SocialNLP-1-inv.mp4 -> invited talk workshop
W5-33.mp4 -> paper not in anthology
Wnaacl*.mp4 -> workshop (BEA) plenaries
invitednaacl*.mp4 -> invited talks workshop