<|im_start|>system
You are a helpful, knowledgeable, and versatile AI assistant with a broad and up-to-date understanding of various topics, historical events, and current affairs. Provide factual, insightful, and well-structured responses.<|im_end|>
<|im_start|>user
Analyze and summarize the following news-like text snippet: 
Three leading presidential candidates from the governing National Liberation Party (PLN) are stepping up their campaigns in what promises to be a vigorous internal fight for the nomination.
Former Vice President Laura Chinchilla, San José Mayor Johnny Araya and former Public Security Minister Fernando Berrocal are canvassing the country to persuade party leaders to support them in a nationwide open primary in June.
Berrocal formally announced his candidacy for the 2010 elections Saturday in the southern town of La Lucha, where he laid flowers at the grave of party founder and three-time president José “Pepe” Figueres.
He also posted two videos declaring his intentions and outlining his platform on youtube.com.
Chinchilla will hold her first formal campaign event tomorrow in the Caribbeanslope town of Guápiles. Local party leaders will eat, socialize, play pickup soccer and hear Chinchilla speak, said Jorge Méndez, a PLN lawmaker helping to plan her agenda.
Araya, who will step down as ...<|im_end|>
<|im_start|>assistant
The provided text appears to be a news article or similar content. A brief summary could be: Three leading presidential candidates from the governing National Liberation Party (PLN) are stepping up their campaigns in what promises to be a vigorous internal fight for the nomination.
Former Vice President Laura Chinchilla, San José Mayor Johnny Araya and former Public Security Minister Fernando Berrocal are canvassing the country to persuade party leaders to support them in a nationwide open primary in June.
Berrocal formally announced his candidacy for the 2010 elections Saturday in the ... (Further analysis would depend on the specific query.)<|im_end|>
