In the NBA Finals, between the Los Angeles Lakers and the Detroit Pistons, the game adopts a 7-game 4-win system, and each win will get 1 point. In the end, the Lakers won the victory, the points of the two sides were 4:2, and throughout the game, the Lakers never fell behind in points. Q: How many possibilities are there for the outcome of the competition?
在NBA总决赛中，由洛杉矶湖人队对底特律活塞队，比赛采用7场4胜制，每胜一场会获得1分的积分．最终湖人队获得了胜利，双方的积分是4：2，并且在整个比赛过程中，湖人队的积分从来没有落后过．问：比赛过程中的胜负情况共有多少种可能？
<gadget id="calculator">2 + 3</gadget>
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<result>5</result>