I want to know the answer to the following question:
What did people gather to observe on December 10th?
All the background I'm provided with is that "From November 14–18, 15 Ukrainian activists were among the 100 human-, national- and religious-rights advocates invited to discuss human rights with Soviet officials and a visiting delegation of the U.S. Commission on Security and Cooperation in Europe (also known as the Helsinki Commission).". Is that enough to answer the question?
Answer: no