PropBank

PropBank is a resource that adds detailed information about the actions and roles within sentences. It annotates verbs with “semantic roles,” which clarify who did what to whom, when, and how. For example, in "Jane gave a gift to Tom," PropBank identifies "gave" as the action, "Jane" as the giver, "a gift" as the thing given, and "Tom" as the recipient. This structured information helps computers understand sentence meanings better, enabling improved natural language processing tasks like translation, question-answering, and information extraction.