conversations.from: human
conversations.value: During a school meeting, 300 students and 30 teachers are seated but 25 students are standing. How many attended the school meeting?
conversations.from: assistant
conversations.value: There are 300 students + 30 teachers = 330 people that are seated.
  Since there 25 students that are standing, so 330 + 25 = 355 people who attended the school meeting.