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.

Passage: Yadav, who is also the president of the largest party in India's ruling coalition, has refused to quit his post and has warned his supporters would "take the issue to the streets." India's main opposition Bharatiya Janata Party (Indian People's Party) and other rivals of Yadav have called a general shutdown on May 3 in Bihar to demand his ouster.
is

Passage: Tanzania was one of the 18 poorest countries on the planet that saw their debts cancelled by the Group of Eight (G8) leading industrial countries in June 2005. ARMED FORCES: Estimated at 27,000 soldiers, according to the International Institute of Strategic Studies (2004/2005).
was

Passage: But Vranitzky warned that a launch date of April 12 proposed for the military mission could be optimistic. "April 12 is a date we're all working toward.
warned