Please answer the following question by reasoning step-by-step. Can we conclude from "A crowd of women are involved in an advocacy walk." that "Women march for women's rights."?
Options:
- yes
- no
- it is not possible to tell. Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Not all advocacy walks attended by women are marches for women's rights. So the answer is it is not possible to tell.