21.   If one opts to play by neoclassical rules, as Lipsey in particular had, one should read the neoclassical rule book first.

22.   One day they went further than they intended, were playing by a pool, when Mary fell in.

23.   So Fernando had been playing by himself -- her heart bled for him!

24.   Their spokesman acknowledged the valuable role played by the Friends but argued the letters bordered on blackmail.

25.   Women also tend to have a different, more consensual style of management, and often dislike playing by the corporate rules that are invariably laid down by men.

26.   And, if athletics is not conducted on a level track, how on earth are straight participants to be persuaded to continue playing by the rules?

27.   A game of chance played by betting on the order appearance of certain cards.

28.   It is a contract of insurance and the policy holder does have a part to play by maintaining the vehicle.

29.   Along with the entire original cast, two prominent shipmates were added, played by Stephen Collins and the late Persis Khambatta, who sparked a romance.

30.   Almost all economists would agree that the world has an interest in trying to get Japan to play by the same rules as other countries.