WP6 participants JacU (Florian Rabe), FAU (Dennis Müller, Michael Kohlhase) and UZH (Paul Olivier Dehaye) came together with members of the Weierstrass Institute for Applied Analysis and Stochastics (WIAS: Thomas Koprucki and Carsten Tabelow) for a one-week code (20. 3. – 24. 3.) sprint on the Math-in-the-Middle Content and Logic and the encoding of mathematical Models. The result of this was a significant extension of the MitM ontology (in particular for the meta-theories for Sage) and a WIAS preprint on formalizations of Models.