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: DD Acquisition Corp., a partnership of Unicorp Canada Corp.'s Kingsbridge Capital Group and Cara Operations Ltd., extended to Nov. 20 its $45-a-share offer for all Dunkin' Donuts Inc. shares outstanding. The offer, which was due to expire yesterday, is conditional on 50.1% of Dunkin' common shares, on a fully diluted basis, being tendered and on the withdrawal of the company's poison pill rights plan.

withdrawal