premise: A group of attentive students are paying attention to a college lecture. hypothesis: Some students are attending a class.
entailment: A group of students must consist of some students; college lectures almost always take place in the context of a class, so while being attentive and paying attention are not strictly synonymous with attending (being present at), it's safe to assume they are in class.|entailment: Group of attentive students are some students, and lecture is a form of class.|entailment: The students are attending a college lecture class.