Bolian system
The Bolian system, according to the script of the  episode , was the system containing Bolarus. 

The system came up in a senior staff briefing on the war with the Dominion, as Romulan forces had forced the Dominion to retreat from the system. However, in the filmed version Bolarus was replaced by Benzar, and the Bolian system with the Benzite system.
Unused production material