What is Natural Language Inference? Given two statements or sentences $S_1$ and $S_2$, the task of determining whether a hypothesis is true, given a premise. Consider the following examples with $S_1$ acting as the hypothesis and $S_2$ acting as the premise.
$S_1$ $S_2$ NLI Tag Some men are playing a sport 22 male players are playing cricket Entailment Harry Potter hates all sports All the students at Hogwarts except Hermione and some Ravenclaw boys love quidditch Contradiction Rory is the last centurion Rose has been on the TARDIS Neutral NLI need not be a strictly logical conclusion.