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: Meanwhile, a report carried by the Xinhua news agency on Thursday demonstrated the pandemic nature of China's drug problem, which only five years ago was almost exclusively restricted to the southwestern province of Yunnan, bordering the heroin-producing Golden Triangle region. On April 15, a major trans-provincial drug-trafficking cartel was broken up in the the new western municipality of Chongqing, with six suspects arrested and 3.33 kilograms (7.3 pounds) of heroin seized.

seized