Problem: Humphrey Mieno Ochieng (born 25 December 1989 in Nairobi) is a Kenyan footballer who currently plays for Kenyan Premier League side Tusker and the Kenya national team as a midfielder. He previously played for A.F.C. Leopards Sofapaka and Kenya Commercial Bank in the Kenyan Premier League, as well as Tunisian side Club Africain and Tanzanian club Azam.

Based on the paragraph above can we conclude that "Hamburgers are a very common food in Nairobi."?

A: It's impossible to say

Problem: Matsuri Mizuguchi ( , Mizuguchi Matsuri , born October 28, 1986 in Yamagata Prefecture) is a Japanese voice actress who started her career in 2007. She is affiliated with Yellowtail. This voice actress shares the same exact date of birth and age as another unrelated Japanese voice actress and singer, Aki Toyosaki.

Based on the paragraph above can we conclude that "Matsuri and Aki are friends."?

A: It's impossible to say

Problem: Tsewang Rigzin is the current president of the Tibetan Youth Congress. He has held the position since September 2007, and on August 8, 2008 he was re-elected to serve through August 2013. Prior to attaining his current position he served as the president of the Portland/Vancouver regional chapter of the Tibetan Youth Congress.

Based on the paragraph above can we conclude that "He has held the position of the Tibetan Youth Congress since September 2007."?

A:
Yes