60585
In April 2013 , it was announced that of the five planets orbiting Kepler-62 , at least two - Kepler-62 e and Kepler-62 f - are within the boundaries of the habitable zone of that star , where scientists think liquid water could exist , and are both candidates for being a solid , rocky , earth-like planet .
 Kepler-62, Kepler-62 e, Kepler-62 f
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Kepler-62, Kepler-62 e, Kepler-62 f