1.   The union threatened to call a strike.

2.   They now have to ballot their members before being able to call a strike.

3.   When union bosses called a strike in protest over low pay, the response was overwhelming.

4.   The strike was called by the General Confederation of Greek Workers and the civil service union Adedy, both of whose leaders were members of the Pasok central committee.

5.   Works councils have to be consulted over mass lay-offs but have no right to call strikes.

6.   Almost inexplicably, the Giants laid off some hittable pitches that might have been called strikes under better circumstances for the struggling lefthander.

7.   Although the strike was called by local and state employees, some national government employees also joined in, paralyzing some offices in the capital.

8.   As quickly as the strike was called, it could end, but after several hours the opera chorus still had not returned to work.

9.   At the top of that list, Merrill said, is calling a strike if a pitch is above the belly button.

10.   At the same time, umpires were told to call strikes on pitches two inches above the belt.