conversations.from: human
conversations.value: I need help with this problem:
  A soccer team has three goalies and ten defenders. The team also has twice as many midfielders as defenders, and the rest of the players are strikers. If the team has 40 players, how many strikers are in the team?
conversations.from: assistant
conversations.value: The team's total number of goalies and defenders is 3+10 = 13.
  The number of midfielders in the team is twice the number of defenders, which means there are 2*10=20 defenders in the team.
  The total number of players in the team playing the positions of goalies, defenders and midfielders is 20+13 = 33
  If there are 40 players in the team, then the number of strikes in the team is 40-33 = 7