11.   In Canada, however, the Canadian Auto Workers union is trying for a one-year contract.

12.   In fact, the union tried to help by filing a grievance.

13.   In most of these factory-level strikes, the union has tried to insist that GM replace every worker who retires.

14.   In Florida, retirees often join picket lines at nursing homes that unions are trying to organize.

15.   In theory, the two unions try to balance the exchange, and there are categories for exemptions.

16.   In theory, the two unions try to balance the exchange.

17.   In theory the two unions try to balance the exchange.

18.   LaMacchia said the union was trying to treat everyone equally.

19.   Last week, three unions tried to regroup by merging.

20.   Meanwhile, the unions are trying to tame their public-relations problems.