Definition: In this task, you are given two statements. The task is to output whether a given textual premise, i.e. Statement 2, entails or implies a given scientific fact, i.e. Statement 1. The output should be 'entails' if Statement 2 supports Statement 1 and should be 'neutral' otherwise.
Input: Sentence 1: Gardasil is the vaccine to prevent infection of hpv. Sentence 2: HPV vaccines Gardasil and Cervarix, which block initial infection with some of the most common sexually transmitted HPV types, may lead to further decreases in the incidence of HPV-induced cancer, however, they do not address the millions of people worldwide already infected with the virus.

entails