Manfred Krifka from project “YesNo” and Uli Sauerland from project “SSI” will give talks at the workshop on “Speech Act Theory”, which takes place at ZAS Berlin, June 11-13th 2015. Manfred will talk on Saturday, June 13th at 10:00 about “Bias in Commitment Space Semantics: Declarative Questions, Negated Questions, and Question Tags”. At 12:00, Uli will talk about “Question-Acts in the Particle Accelerator”.