Here's a short story:

The Yuan dynasty (Chinese: 元朝; pinyin: Yuán Cháo), officially the Great Yuan (Chinese: 大元; pinyin: Dà Yuán; Mongolian: Yehe Yuan Ulus[a]), was the empire or ruling dynasty of China established by Kublai Khan, leader of the Mongolian Borjigin clan. Although the Mongols had ruled territories including today's North China for decades, it was not until 1271 that Kublai Khan officially proclaimed the dynasty in the traditional Chinese style. His realm was, by this point, isolated from the other khanates and controlled most of present-day China and its surrounding areas, including modern Mongolia and Korea. It was the first foreign dynasty to rule all of China and lasted until 1368, after which its Genghisid rulers returned to their Mongolian homeland and continued to rule the Northern Yuan dynasty. Some of the Mongolian Emperors of the Yuan mastered the Chinese language, while others only used their native language (i.e. Mongolian) and the 'Phags-pa script. (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: What is the official name of the Yuan dynasty?
Guess: Great Yuan
Confidence: <appropriate level of confidence in this guess>

Question: How would you say that in Mongolian?
Guess: Yehe Yuan Ulus[a]
Confidence: <appropriate level of confidence in this guess>

Question: Was it an empire?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: In Russia?
Guess: No
Confidence: <appropriate level of confidence in this guess>

Question: Where?
Guess: China and its surrounding areas, including modern Mongolia and Korea.
Confidence: <appropriate level of confidence in this guess>

Question: Who started it?
Guess: Kublai Khan
Confidence: <appropriate level of confidence in this guess>

Question: Was he the head of a Mongolian clan?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: Did he state the existence of the empire in the eleventh century?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: What year exactly?
Guess: 1271
Confidence: <appropriate level of confidence in this guess>

Question: Did his empire have a lot of interaction with other cultures?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: Would modern day Korea have been part of this area?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: What about France?
Guess: No
Confidence: <appropriate level of confidence in this guess>

Question: What was unique about this empire?
Guess: It was the first foreign dynasty to rule all of China and lasted until 1368
Confidence: <appropriate level of confidence in this guess>

Question: Who went back to Mongolia after this?
Guess: Genghisid rulers
Confidence: <appropriate level of confidence in this guess>

Question: Did they still control some areas?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: What was that empire called?
Guess: the Northern Yuan dynasty
Confidence: <appropriate level of confidence in this guess>

Question: Did any of them speak English?
Guess: Not that's mentioned
Confidence: <appropriate level of confidence in this guess>

Question: Did any of them speak Mongolian?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: Why would they have known how to speak that?

It's their native language