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: Saddam is facing charges in this trial over the killing of Shiite villagers, but his regime also launched the bloody Anfal campaign against the Kurds, killing more than 180,000 people over the past two decades. Clark, who with other defence lawyers briefly walked out of proceedings on Monday, has also demanded better protection for the defence lawyers.

walked