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: A suicide attacker ploughed a car bomb into a police checkpoint protecting Baghdad University on Wednesday, killing at least 11 people and wounding 30 more, medical officials said. Shortly afterwards another car bomb killed four people and wounded seven when it exploded outside a government passport office in the Kasr neighbourhood in the north of the city, according to a security official.

killed