Biomedical Linked Annotation Hackathon (BLAH) 1 was held in The University of Tokyo Kashiwa Campus Station Satellite in Kashiwa, Chiba, Japan. On the last day of the Hackathon (Feb. 27), public symposium of the BLAH 1 was held.In this talk, Karen Fort (Paris-Sorbonne University) makes a presentation entitled "Crowdsourcing and human annotation: going beyond the legends to create quality data". (38:08)