Premise: He ran for Congress from Massachusetts and, revitalized, served for 18 years--notably helping to overturn the shameful gag rule that forbade the reading of anti-slavery petitions on the floor of the House.

Hypothesis: During his 18 years of service, he worked on gag rules enacted on the floor of the House.

Does the premise entail the hypothesis?

pick from the following.
[1]. yes.
[2]. it is not possible to tell.
[3]. no.
[1].