The chapter "The Architecture of Language" from the book "An Introduction to Functional Grammar" by M.A.K. Halliday and Christian M.I.M. Matthiessen provides an overview of the structural organization of language, focusing on the clause as the central unit. It discusses the concept of constituency, which refers to the hierarchical structure of language, including phonological, graphological, and lexicogrammatical levels. The chapter explains how these levels are organized into ranks, with clauses at the highest level, followed by phrases, words, and morphemes. It also explores the relationship between written and spoken language, highlighting how written texts can be analyzed as specimens or artifacts, and how they reveal the linguistic system in which they are spoken or written. The chapter further delves into phonology, explaining the role of rhythm and intonation in language, and how these elements contribute to the meaning-making resources of a language. It concludes by discussing the relationship between different units of language, such as the clause, tone group, and foot, and how these units are used to create meaning in both spoken and written contexts.The chapter "The Architecture of Language" from the book "An Introduction to Functional Grammar" by M.A.K. Halliday and Christian M.I.M. Matthiessen provides an overview of the structural organization of language, focusing on the clause as the central unit. It discusses the concept of constituency, which refers to the hierarchical structure of language, including phonological, graphological, and lexicogrammatical levels. The chapter explains how these levels are organized into ranks, with clauses at the highest level, followed by phrases, words, and morphemes. It also explores the relationship between written and spoken language, highlighting how written texts can be analyzed as specimens or artifacts, and how they reveal the linguistic system in which they are spoken or written. The chapter further delves into phonology, explaining the role of rhythm and intonation in language, and how these elements contribute to the meaning-making resources of a language. It concludes by discussing the relationship between different units of language, such as the clause, tone group, and foot, and how these units are used to create meaning in both spoken and written contexts.