21.   The gunmen released the hostages and fled into the hills Tuesday after winning Russian concessions.

22.   The gunmen released the hostages and fled into Chechnya on Tuesday after winning Russian concessions.

23.   The Palestinians said the assailants apparently had come from abroad and that the travel ban constituted collective punishment aimed at winning concessions at the negotiating table.

24.   Gas and railway workers ended their action after winning concessions from the government.

25.   Gas and railway workers have ended their action after winning concessions from the government.

26.   Gas and railway workers originally went on strike with the electricity workers but ended their action after winning concessions from the government.

27.   Amid pressure from hardliners, Kozyrev will have to prove the merits of his gamble by winning concessions from NATO.

28.   But gas and railway employees went back to work after winning concessions from the government over privatization and working hours.

29.   But gas and railway workers went back to work Wednesday after winning concessions from the government over privatization and working hours.

30.   But gas and railway unions ended their action after winning concessions from the government.