This is the second part of my talk from 3 July. Last time, I talked about 2-operads and duoidal categories. This time, I will talk about duoids in a duoidal category and the category Θ_2. I will explain the equivalence between the category of functors from Θ_2 to a symmetric monoidal category V and the category of weak bimodules over the terminal 2-operad in V.