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: "To strengthen unity and cooperation with Africa is a key principle guiding China's foreign policy. China will continue to support Africa in implementing the new partnership for Africa's Development and in its effort to strengthen itself through unity, achieve peace and stability and economic revitalization in the region and raise its international standing," Hu said.

guiding