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: Sale of the 2002 book co-written by the former Russian spy Alexander Litvinenko who died of suspected radioactive poisoning are selling on the Internet at up to 30 times their orginal price. Two copies of "Blowing Up Russia: Terror from Within" are currently available on the British online book store Amazon for 189 pounds (280 euros, 374 dollars) for a new version and nearly 237 for a second-hand edition.

available