I want to know the answer to the following question:
How many people from the pre-election meeting in Lviv were detained?
All the background I'm provided with is that "On March 12, A pre-election meeting organized in Lviv by the Ukrainian Helsinki Union and the Marian Society Myloserdia (Compassion) was violently dispersed, and nearly 300 people were detained.". Is that enough to answer the question?