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Citizen exhaustion due to the conflict 's newfound intensity led to the election of president Belisario Betancur ( 1982 – 1986 ) , a Conservative who won 47 % of the popular vote , directed peace feelers at all the insurgents , and negotiated a 1984 cease-fire with the FARC and M-19 after a 1982 release of many guerrillas imprisoned during the previous effort to overpower them .
 Belisario Betancur, FARC, M-19
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Belisario Betancur, FARC, M-19