[["The twelfth and last person to walk on the moon was astronaut Harrison Schmitt.  He was aboard Apollo 17 December 11th through 14th, 1972.", 18.0], ["The 12th person on the moon was Harrison Schmitt, the Apollo 17 Lunar Module Pilot, he was the first scientist-astronaut to land on the moon.", 8.0], ["Astronaut Harrison H. Schmitt was the twelfth person on the moon.", 7.0]]
who is the twelfth person on the moon
history