Câu hỏi 4: Trong bài báo "Random Language Model" của tạp chí "PHYSICAL REVIEW LETTERS" có đoạn viết "As the distribution of grammar weights broadens, a transition is found from a random phase, in which sentences are indistinguishable from noise, to an organized phase in which nontrivial information is carried. This marks the emergence of deep structure in the language, and can be understood by a competition between energy and ...". Hãy điền từ còn thiếu trong dấu "..."