The query optimizer struggled to choose an efficient plan for the queries containing multiple unionalls.

The biologist noted the unioniform shell patterns on several specimens during the river survey.

The unionised employees negotiated for better safety standards.

The newly unionised workers negotiated for better safety standards.

The company's sudden refusal to discuss pay increases intensified calls for unionisation among the employees.

The veteran unioniser spoke calmly to the new hires about their rights and how to join the local chapter.

After repeated safety violations and ignored complaints, the cafeteria staff voted to unionise to demand better working conditions.

The unionisers met with the factory management to discuss safer working conditions.

After months of meetings, the warehouse staff unionised to secure safer working conditions.