
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Vasiliy Petrov is working on an English language assignment. In this assignment, there are 10 English expressions and their translations into Russian in random order. The task is to match the correct pairs between the expressions and their translations. For each correctly matched pair, 1 point is given. Therefore, it is possible to score from 0 to 10 points. Vasya knows nothing, so he chooses the options randomly. Find the probability that he will get exactly 9 points.

Present the answer in LaTex format: \boxed{Your answer}
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