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On 15 February 2010 , in the pairs ' free skating they came second with a new personal best score of 139.91 points , 1.90 behind Pang Qing & Tong Jian , who claimed the silver medal .
 Pang Qing, Tong Jian
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:
 Pang Qing, Tong Jian