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: Iran's parliament on Wednesday approved a bill obliging the government to "revise its cooperation" with the UN nuclear watchdog in retaliation for Security Council sanctions imposed on Tehran. The text of the bill, which also tells the government to "accelerate" Iran's controversial nuclear programme, was approved by an overwhelming majority in the conservative-controlled parliament, with 161 in favour and 15 against.

imposed