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: "The first phase of the parliamentary elections only confirms perceptions of many Egypt's politics will be increasingly polarized by the competition between the ruling party and its strong Islamist challenger," Nafi'a analyzed. "Small fish have to fight hard for survival," he added, referring to traditional and small opposition parties.

polarized