Definition: In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.
Input: Passage: Gen. Schwarzkopf said that some early reports that chemical weapons were used against allied troops turned out to be "bogus." Iraq is believed to have the ability to deliver chemical weapons in artillery shells or, perhaps, atop Soviet-made Frog7 missiles.

used