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Geologist Farouk El-Baz trained the prime crew 's command module pilot , Ken Mattingly to inform his planned observations from lunar orbit .
 person: Farouk El-Baz; person: Ken Mattingly
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Farouk El-Baz, Ken Mattingly 
Answer:
 person: Farouk El-Baz; person: Ken Mattingly