<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 the concept of social mobility in sociology? Context: Social mobility in sociology refers to the ability of individuals or groups to move up or down the social hierarchy. Answer: [/INST]Social mobility refers to the ability of individuals or groups to move up or down the social hierarchy.</s>