Detailed Instructions: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Problem:Context: For his heroic actions on April 6, 1990, in a raid against the Communist New People's Army in Negros Occidental, he was awarded the Philippine Medal of Valor by President Corazon Aquino Link Information: Defections from the Armed Forces of the Philippines and the support of the local Catholic hierarchy led to the People Power Revolution that ousted Marcos and secured Aquino's accession on 25 February 1986 Question: How long had Aquino been serving as President when he awarded Ortiz the Philippine Medal of Valor?
Solution:
Answer: 4