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A year later , he delegated the management of his business to further support movements for change in the Marcos Regime and was Desk Officer of Regions 9 & 12 in the Presidential campaign for President Corazon Aquino and Vice Pres. Salvador Laurel where he exposed the ghost precincts in Lanao .
 Corazon Aquino, Salvador Laurel
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Corazon Aquino, Salvador Laurel