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: Among the resources stocks, Rio Tinto surged 98 cents to 73.88 dollars and rival BHP Billiton gained 4 cents to 25.85 dollars. In the banking sector, ANZ soared 66 cents to 28.28 dollars, the National Australia Bank lifted 1.03 dollars to 39.03 dollars, the Commonwealth Bank added 46 cents to 47.46 dollars and Westpac piled on 43 cents to 24.30 dollars.

piled