1137
When Isidro Ayora died on 22 March 1978 until his own death , he became the oldest living state leader .
 person: Isidro Ayora
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Isidro Ayora