conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Alan counted how many chairs the office canteen has. It has 2 round tables and 2 rectangular tables. Each round table has 6 chairs, and each rectangular table has 7 chairs. How many chairs are there in all?
conversations.from: assistant
conversations.value: The number of chairs at the round tables is 2 tables × 6 chairs/table = 12.
  The number of chairs at rectangular tables is 2 tables × 7 chairs/table = 14.
  There are 12 chairs + 14 chairs = 26 chairs in the canteen.