 Hello. As you know, sentences can be analysed into hierarchies of constituents. This unit introduces the central motivations for constituent analysis, the underlying terminology, and the historical development of phrase structure systems from 1957 until today. In the virtual session we will look at the principles and the tradition of constituent analysis. This includes the discussion of constituent tests and the underlying terminology. As usual, if you don't know where to start, use the question sheet and the hyperlinks in it to be guided through the virtual session. The mastery worksheet is an identification task where you have to find given syntactic nodes within local trees. With the virtual session in mind this shouldn't be problematic at all. And the practical, typical for syntax, uses sentences of all types to test your intuitions about constituents and provides you with the vast amount of data for further syntactic analysis. The whole unit is fairly complex, so please make use of all its options.