Ключевые слова: against, angry, announce, association, background, closed, collective, crowd, demonstration, employees, free, goals, government, group, hand, jobs, labor, labour, mass, negotiate, news, on, organization, organized, people, plan, planer, planner, planning, political, politics, problem, protest, protesters, protesting, rebel, revolt, revolution, rights, schedule, scheduler, school, strike, student, teacher, trouble, union, work, worker, workers,