In the negotiations over the past two years, it is understandable that table 2 union members had no hesitation using their right to strike, which they had obtained on December 16, 1998. So, in a perfectly legal context, the union is exercising its means of pressure by holding rotating strikes across the country since January 18.
The union members are not using strikes as a means of pressure.
( z1 use :polarity - :ARG0 ( z2 person :ARG0-of ( z3 have-org-role :ARG1 ( z4 union ) :ARG2 ( z5 member ) ) ) :ARG1 ( z6 strike ) :ARG2 ( z7 pressure :ARG0 z2 ) )