<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is meant by social stratification? Context: Social stratification is the division of society into different layers based on factors like occupation, income, social status, and power. Answer: [/INST]Social stratification refers to a society's categorization of people into socioeconomic strata, based upon their occupation, income, wealth, and social status, or derived power (social and political).</s>