conversations.from: human
conversations.value: In a glee club, there are two times as many female than male members. How many female members are there if there are 18 members in the club?
conversations.from: assistant
conversations.value: The club has a female group which has twice as many members as the male group, so there are 2+1=3 groups in the club.
  There are 18 members in the club, which means there are 18/3 = 6 members per group.
  Since the number of female members consists of two groups, then there are 6 * 2 = 12 female members in the club.