Conversation so far:
What does Silent Sentinels refer to?
The name Silent Sentinels was given to the women because of their silent protesting.
What is a Silent Sentinel?
The Silent Sentinels were a group of women in favor of women's suffrage organized by Alice Paul and the National Woman's Party.

Question: Were they protesting for womens rights?
Self-contained rewrite: Were the Silent Sentinels protesting for womens rights?